IP Library Granted Patent US 12,635,839
Granted Patent B2
US 12,635,839 · App. 17/345,654 · Granted May 26, 2026

Robotic cleaner having surface type sensor

Inventors: Chad Woodrow (Needham, MA); Brendan C. Uchendu (Boston, MA); Christopher Pinheiro (East Walpole, MA)
Assignee: SharkNinja Operating LLC
A47L9/2826A47L9/2889G01N21/474G01N21/55A47L2201/06G01N2021/556
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Quick Facts
Patent No.
US 12,635,839
App. No.
17/345,654
Filed
Jun 11, 2021
Granted
May 26, 2026
Kind
B2
Art Unit
2877
USPC
356/601
Abstract

A combination surface type sensor may include a housing including a first receptacle, a second receptacle, a third receptacle, and a fourth receptacle, a first surface type detector disposed within the first receptacle, a second surface type detector disposed within the fourth receptacle, an emitter disposed within the second receptacle, and a drop-off detector disposed within the third receptacle.

Claims (24)

1 . A combination surface type sensor comprising:

a housing including a first receptacle, a second receptacle, a third receptacle, and a fourth receptacle;

a first surface type detector disposed within the first receptacle;

a second surface type detector disposed within the fourth receptacle;

an emitter disposed within the second receptacle;

a drop-off detector disposed within the third receptacle; and

a cover extending over each of the first, second, third, and fourth receptacles, the cover including a lens that corresponds to the fourth receptacle.

2 . The combination surface type sensor of claim 1 , wherein the second and third receptacles are disposed between the first and fourth receptacle and the third receptacle is disposed between the second and fourth receptacle.

3 . The combination surface type sensor of claim 1 , wherein the lens is a planoconvex lens.

4 . The combination surface type sensor of claim 1 , wherein the first surface type detector is configured to detect diffuse light and the second surface type detector is configured to detect specular light.

5 . A robotic cleaner comprising:

a body;

a primary controller coupled to the body and being configured to cause the robotic cleaner to carry out at least one cleaning behavior;

a secondary controller coupled to the body and communicatively coupled to the primary controller, the secondary controller being configured to cause the robotic cleaner to carry out at least one hazard avoidance behavior; and

a combination surface type sensor coupled to the body, the combination surface type sensor including:

a housing including a first receptacle, a second receptacle, a third receptacle, and a fourth receptacle;

a first surface type detector disposed within the first receptacle and communicatively coupled to the primary controller;

a second surface type detector disposed within the fourth receptacle and communicatively coupled to the primary controller;

an emitter disposed within the second receptacle and communicatively coupled to the secondary controller;

a drop-off detector disposed within the third receptacle and communicatively coupled to the secondary controller; and

a cover extending over each of the first, second, third, and fourth receptacles, the cover includes a lens, and the lens corresponds to the fourth receptacle.

6 . The robotic cleaner of claim 5 , wherein the second and third receptacles are disposed between the first and fourth receptacle and the third receptacle is disposed between the second and fourth receptacle.

7 . The robotic cleaner of claim 5 , wherein the lens is a planoconvex lens.

8 . The robotic cleaner of claim 5 , wherein the first surface type detector is configured to detect diffuse light and the second surface type detector is configured to detect specular light.

Assignments (2)
NOTICE OF GRANT OF SECURITY INTEREST IN PATENTS Recorded Jul 20, 2023
From: SHARKNINJA OPERATING LLC
To: BANK OF AMERICA, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 064600/0098 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 23, 2021
From: WOODROW, CHAD; UCHENDU, BRENDAN C.; PINHEIRO, CHRISTOPHER
To: SHARKNINJA OPERATING LLC
Reel/Frame 056632/0679 →
Continuity (3)
Provisional Application 63074260 · Sep 3, 2020
Provisional Application 63038425 · Jun 12, 2020
Related Publication 20210386261A1 · Dec 16, 2021
References Cited (334)
US 4703240A · Yoshimoto et al. · 1987 [cited by applicant]
US 4953253A · Fukuda et al. · 1990 [cited by applicant]
US 4977639A · Takahashi et al. · 1990 [cited by applicant]
US 5307273A · Oh et al. · 1994 [cited by applicant]
US 5525883A · Avitzour · 1996 [cited by applicant]
US 5542146A · Hoekstra et al. · 1996 [cited by applicant]
US 5646738A · Honkawa · 1997 [cited by examiner]
US 5666194A · Denton · 1997 [cited by examiner]
US 5722109A · Delmas et al. · 1998 [cited by applicant]
US 5748853A · Deschenes · 1998 [cited by applicant]
US 5764251A · Hashimoto · 1998 [cited by examiner]
US 6021363A · Nishikawa et al. · 2000 [cited by applicant]
US 6076226A · Reed · 2000 [cited by applicant]
US 6076227A · Schallig et al. · 2000 [cited by applicant]
US 6561643B1 · Walker · 2003 [cited by examiner]
US 6571422B1 · Gordon et al. · 2003 [cited by applicant]
US 6600167B2 · Sano · 2003 [cited by examiner]
US 6741363B1 · Kaupert · 2004 [cited by applicant]
US 6941199B1 · Bottomley et al. · 2005 [cited by applicant]
US 7079923B2 · Abramson et al. · 2006 [cited by applicant]
US 7218386B2 · Alcock · 2007 [cited by examiner]
US 7225500B2 · Diehl et al. · 2007 [cited by applicant]
US 7237298B2 · Reindle et al. · 2007 [cited by applicant]
US 7269877B2 · Tondra et al. · 2007 [cited by applicant]
US 7272868B2 · Im et al. · 2007 [cited by applicant]
US 7424766B2 · Reindle et al. · 2008 [cited by applicant]
US 7507948B2 · Park et al. · 2009 [cited by applicant]
US 7599758B2 · Reindle et al. · 2009 [cited by applicant]
US 7626709B2 · Schwarz · 2009 [cited by examiner]
US 7631394B2 · Oh et al. · 2009 [cited by applicant]
US 7633612B2 · Schwarz · 2009 [cited by examiner]
US 7659994B2 · Sperling · 2010 [cited by examiner]
US 7741629B2 · Schwarz · 2010 [cited by examiner]
US 7751741B2 · Hirai · 2010 [cited by examiner]
US 7827654B2 · Nishikawa · 2010 [cited by applicant]
US 7834991B2 · Schwarz · 2010 [cited by examiner]
US 7971315B2 · Kim et al. · 2011 [cited by applicant]
US 8032978B2 · Haegermarck · 2011 [cited by applicant]
US 8275506B1 · Bishel · 2012 [cited by applicant]
US 8346389B2 · Kim et al. · 2013 [cited by applicant]
US 8455851B2 · Tanaka · 2013 [cited by examiner]
US 8463018B2 · Chung et al. · 2013 [cited by applicant]
US 8467065B2 · Suzuki · 2013 [cited by examiner]
US 8525975B2 · Chen et al. · 2013 [cited by applicant]
US 8735824B2 · Hong et al. · 2014 [cited by applicant]
US 8755591B2 · Chung et al. · 2014 [cited by applicant]
US 8788092B2 · Casey · 2014 [cited by examiner]
US 8862271B2 · Shamlian et al. · 2014 [cited by applicant]
US 8942583B2 · Hoshi · 2015 [cited by examiner]
US 9116130B2 · Suzuki · 2015 [cited by examiner]
US 9259129B2 · Jang et al. · 2016 [cited by applicant]
US 9375842B2 · Shamlian et al. · 2016 [cited by applicant]
US 9377739B2 · Masuda · 2016 [cited by examiner]
US 9399284B2 · Kwon et al. · 2016 [cited by applicant]
US 9414731B2 · Soejima · 2016 [cited by applicant]
US 9427875B2 · Goel et al. · 2016 [cited by applicant]
US 9442488B2 · Shamlian et al. · 2016 [cited by applicant]
US 9456725B2 · Kim et al. · 2016 [cited by applicant]
US 9474427B2 · Lee et al. · 2016 [cited by applicant]
US 9510715B2 · Van Den Bogert · 2016 [cited by applicant]
US 9609991B2 · Hillman, Jr. et al. · 2017 [cited by applicant]
US 9629514B2 · Hillen et al. · 2017 [cited by applicant]
US 9731919B2 · Saito · 2017 [cited by examiner]
US 9763551B2 · Murchie et al. · 2017 [cited by applicant]
US 9798328B2 · Vicenti · 2017 [cited by applicant]
US 9843905B1 · Wirola et al. · 2017 [cited by applicant]
US 9877626B2 · Ebrahimi Afrouzi · 2018 [cited by applicant]
US 9877628B2 · Park · 2018 [cited by applicant]
US 9919425B2 · Bushman et al. · 2018 [cited by applicant]
US 9946263B2 · Lindhe et al. · 2018 [cited by applicant]
US 9968233B2 · Strang · 2018 [cited by examiner]
US 9969089B2 · Goel et al. · 2018 [cited by applicant]
US 9993129B2 · Santini · 2018 [cited by applicant]
US 10022028B2 · Tsuboi et al. · 2018 [cited by applicant]
US 10031457B2 · Oba · 2018 [cited by examiner]
US 10178933B2 · Lee et al. · 2019 [cited by applicant]
US 10203641B2 · Takenaga · 2019 [cited by examiner]
US 10247669B2 · Windorfer · 2019 [cited by applicant]
US 10293489B1 · Cui et al. · 2019 [cited by applicant]
US 10296007B2 · Vicenti · 2019 [cited by applicant]
US 10327614B2 · Hillen et al. · 2019 [cited by applicant]
US 10429851B2 · Shamlian · 2019 [cited by examiner]
US 10433697B2 · Lindhe et al. · 2019 [cited by applicant]
US 10459390B2 · Takahashi · 2019 [cited by examiner]
US 10463220B2 · Jee et al. · 2019 [cited by applicant]
US 10551843B2 · Yee et al. · 2020 [cited by applicant]
US 10578546B2 · Kawano · 2020 [cited by examiner]
US 10588475B2 · Koura · 2020 [cited by examiner]
US 10627518B2 · Chen · 2020 [cited by examiner]
US 10722088B2 · Son · 2020 [cited by examiner]
US 10795377B2 · Afrouzi et al. · 2020 [cited by applicant]
US 10866542B2 · Ino · 2020 [cited by examiner]
US 10933534B1 · Ebrahimi Afrouzi et al. · 2021 [cited by applicant]
US 11116374B2 · Dhindsa et al. · 2021 [cited by applicant]
US 11126130B2 · Ishido · 2021 [cited by examiner]
US 11147424B2 · So et al. · 2021 [cited by applicant]
US 11202543B2 · Pohlman et al. · 2021 [cited by applicant]
US 11231720B2 · Yi · 2022 [cited by examiner]
US 11234571B2 · Yan et al. · 2022 [cited by applicant]
US 11274929B1 · Afrouzi · 2022 [cited by applicant]
US 11278174B2 · So et al. · 2022 [cited by applicant]
US 11397262B2 · Gordon · 2022 [cited by examiner]
US 11449061B2 · Ebrahimi Afrouzi · 2022 [cited by examiner]
US 11467587B2 · Ebrahimi Afrouzi · 2022 [cited by examiner]
US 12185902B2 · Yang · 2025 [cited by examiner]
US 20020051648A1 · Shimomura · 2002 [cited by examiner]
US 20020116089A1 · Kirkpatrick, Jr. · 2002 [cited by applicant]
US 20040204792A1 · Taylor · 2004 [cited by examiner]
US 20040220698A1 · Taylor et al. · 2004 [cited by applicant]
US 20040244138A1 · Taylor et al. · 2004 [cited by applicant]
US 20050000543A1 · Taylor · 2005 [cited by examiner]
US 20050010331A1 · Taylor et al. · 2005 [cited by applicant]
US 20050137749A1 · Jeon et al. · 2005 [cited by applicant]
US 20050166354A1 · Uehigashi · 2005 [cited by applicant]
US 20100125968A1 · Ho · 2010 [cited by applicant]
US 20110099747A1 · Kim et al. · 2011 [cited by applicant]
US 20120125363A1 · Kim et al. · 2012 [cited by applicant]
US 20130058635A1 · Vrdoljak · 2013 [cited by applicant]
US 20130073088A1 · Lee et al. · 2013 [cited by applicant]
US 20130152337A1 · Thorne · 2013 [cited by applicant]
US 20130204463A1 · Chiappetta · 2013 [cited by applicant]
US 20130211589A1 · Landry · 2013 [cited by examiner]
US 20140058611A1 · Borinato · 2014 [cited by applicant]
US 20140075689A1 · Windorfer · 2014 [cited by applicant]
US 20140114525A1 · Ebrahimi Afrouzi · 2014 [cited by applicant]
US 20140150201A1 · Mcgee et al. · 2014 [cited by applicant]
US 20140166047A1 · Hillen et al. · 2014 [cited by applicant]
US 20150013102A1 · Bilger · 2015 [cited by applicant]
US 20150040340A1 · Bilger et al. · 2015 [cited by applicant]
US 20150135474A1 · Gidwell · 2015 [cited by applicant]
US 20150297054A1 · Weeks et al. · 2015 [cited by applicant]
US 20150351596A1 · Thorne · 2015 [cited by applicant]
US 20160016312A1 · Lawrence et al. · 2016 [cited by applicant]
US 20160128530A1 · Thorne et al. · 2016 [cited by applicant]
US 20160174793A1 · Burke et al. · 2016 [cited by applicant]
US 20160220080A1 · Thorne · 2016 [cited by applicant]
US 20160220081A1 · Xu et al. · 2016 [cited by applicant]
US 20160220082A1 · Thorne et al. · 2016 [cited by applicant]
US 20160287044A1 · Tanaka et al. · 2016 [cited by applicant]
US 20160324388A1 · Vrdoljak et al. · 2016 [cited by applicant]
US 20160374533A1 · Innes et al. · 2016 [cited by applicant]
US 20170000305A1 · Gordon et al. · 2017 [cited by applicant]
US 20170042319A1 · Conrad et al. · 2017 [cited by applicant]
US 20170112343A1 · Innes et al. · 2017 [cited by applicant]
US 20170127896A1 · Carter et al. · 2017 [cited by applicant]
US 20170144810A1 · Birdsell · 2017 [cited by applicant]
US 20170215667A1 · Thorne et al. · 2017 [cited by applicant]
US 20170344019A1 · Haegermarck et al. · 2017 [cited by applicant]
US 20170347848A1 · Carter et al. · 2017 [cited by applicant]
US 20180035854A1 · Thorne · 2018 [cited by applicant]
US 20180064301A1 · Cottrell et al. · 2018 [cited by applicant]
US 20180068815A1 · Cottrell · 2018 [cited by applicant]
US 20180070785A1 · Udy et al. · 2018 [cited by applicant]
US 20180088585A1 · Vicenti · 2018 [cited by applicant]
US 20180125003A1 · Wu et al. · 2018 [cited by applicant]
US 20180213992A1 · Koetz et al. · 2018 [cited by applicant]
US 20180255991A1 · Der Marderosian et al. · 2018 [cited by applicant]
US 20180255997A1 · So et al. · 2018 [cited by applicant]
US 20180289231A1 · Santini · 2018 [cited by applicant]
US 20180296046A1 · Thorne et al. · 2018 [cited by applicant]
US 20180306432A1 · Ognjen et al. · 2018 [cited by applicant]
US 20180325252A1 · Hopke et al. · 2018 [cited by applicant]
US 20180338654A1 · Kelsey · 2018 [cited by applicant]
US 20180338656A1 · Carter et al. · 2018 [cited by applicant]
US 20180368642A1 · Son et al. · 2018 [cited by applicant]
US 20190018420A1 · Yee et al. · 2019 [cited by applicant]
US 20190021567A1 · Zhou · 2019 [cited by applicant]
US 20190038098A1 · Thorne et al. · 2019 [cited by applicant]
US 20190059668A1 · Thorne et al. · 2019 [cited by applicant]
US 20190069740A1 · Thorne et al. · 2019 [cited by applicant]
US 20190069744A1 · Liggett et al. · 2019 [cited by applicant]
US 20190090701A1 · Tonderys et al. · 2019 [cited by applicant]
US 20190090705A1 · Thorne et al. · 2019 [cited by applicant]
US 20190155299A1 · Yi et al. · 2019 [cited by applicant]
US 20190186923A1 · Servos et al. · 2019 [cited by applicant]
US 20190191947A1 · Freese et al. · 2019 [cited by applicant]
US 20190193120A1 · Brown et al. · 2019 [cited by applicant]
US 20190204442A1 · Woo et al. · 2019 [cited by applicant]
US 20190246853A1 · Sardar et al. · 2019 [cited by applicant]
US 20190258262A1 · Vicenti · 2019 [cited by applicant]
US 20190274500A1 · Thorne et al. · 2019 [cited by applicant]
US 20190274501A1 · Antonisami et al. · 2019 [cited by applicant]
US 20190274505A1 · Ng et al. · 2019 [cited by applicant]
US 20190302793A1 · Leech et al. · 2019 [cited by applicant]
US 20190320865A1 · Brown et al. · 2019 [cited by applicant]
US 20190320866A1 · Thorne et al. · 2019 [cited by applicant]
US 20190335968A1 · Harting et al. · 2019 [cited by applicant]
US 20190343349A1 · Clare et al. · 2019 [cited by applicant]
US 20190357740A1 · Thorne et al. · 2019 [cited by applicant]
US 20200000298A1 · Brown et al. · 2020 [cited by applicant]
US 20200022543A1 · Gill et al. · 2020 [cited by applicant]
US 20200022544A1 · Gill et al. · 2020 [cited by applicant]
US 20200022553A1 · Gill et al. · 2020 [cited by applicant]
US 20200037833A1 · Niedzwecki et al. · 2020 [cited by applicant]
US 20200037843A1 · Fiebig et al. · 2020 [cited by applicant]
US 20200046184A1 · Freese et al. · 2020 [cited by applicant]
US 20200077855A1 · Brown et al. · 2020 [cited by applicant]
US 20200081365A1 · Araki · 2020 [cited by examiner]
US 20200085267A1 · Thorne et al. · 2020 [cited by applicant]
US 20200085269A1 · Thorne · 2020 [cited by applicant]
US 20200121144A1 · Gacin et al. · 2020 [cited by applicant]
US 20200121148A1 · Hoffman et al. · 2020 [cited by applicant]
US 20200138260A1 · Sutter et al. · 2020 [cited by applicant]
US 20200166949A1 · Leech et al. · 2020 [cited by applicant]
US 20200170470A1 · Liggett et al. · 2020 [cited by applicant]
US 20200201348A1 · Leech · 2020 [cited by applicant]
US 20200205631A1 · Brown et al. · 2020 [cited by applicant]
US 20200205634A1 · Sutter et al. · 2020 [cited by applicant]
US 20200237171A1 · Xu et al. · 2020 [cited by applicant]
US 20200288929A1 · Brunner · 2020 [cited by applicant]
US 20200288930A1 · Wells · 2020 [cited by applicant]
US 20200297172A1 · Tonderys et al. · 2020 [cited by applicant]
US 20200301430A1 · Irkliy et al. · 2020 [cited by applicant]
US 20200315418A1 · Howard et al. · 2020 [cited by applicant]
US 20200345196A1 · Innes et al. · 2020 [cited by applicant]
US 20200367711A1 · Thorne et al. · 2020 [cited by applicant]
US 20200371526A1 · Kamada · 2020 [cited by applicant]
US 20200383547A1 · Sutter et al. · 2020 [cited by applicant]
US 20210007569A1 · Howard et al. · 2021 [cited by applicant]
US 20210022574A1 · Harting · 2021 [cited by applicant]
US 20210030227A1 · Mathieu et al. · 2021 [cited by applicant]
US 20210038032A1 · Brown · 2021 [cited by applicant]
US 20210059495A1 · Gill et al. · 2021 [cited by applicant]
US 20210085144A1 · Woodrow et al. · 2021 [cited by applicant]
US 20210169289A1 · Thorne et al. · 2021 [cited by applicant]
US 20210175772A1 · Aini · 2021 [cited by applicant]
US 20210177223A1 · Der Marderosian et al. · 2021 [cited by applicant]
US 20210186282A1 · Mathieu et al. · 2021 [cited by applicant]
US 20210204684A1 · Heman-Ackah et al. · 2021 [cited by applicant]
US 20210254615A1 · Burbank · 2021 [cited by applicant]
US 20210307581A1 · Thorne et al. · 2021 [cited by applicant]
US 20210315428A1 · Udy et al. · 2021 [cited by applicant]
US 20210386261A1 · Woodrow et al. · 2021 [cited by applicant]
US 20210386262A1 · Uchendu et al. · 2021 [cited by applicant]
US 20220031131A1 · Mcclay et al. · 2022 [cited by applicant]
US 20220031133A1 · Der Marderosian et al. · 2022 [cited by applicant]
US 20220031134A1 · Yang et al. · 2022 [cited by applicant]
US 20220061614A1 · Yu et al. · 2022 [cited by applicant]
US 20220071459A1 · Gacin et al. · 2022 [cited by applicant]
US 20220095864A1 · Der Marderosian et al. · 2022 [cited by applicant]
US 20220125256A1 · Lessard et al. · 2022 [cited by applicant]
US 20220287521A1 · Cottrell et al. · 2022 [cited by applicant]
US 20220322903A1 · Lessard · 2022 [cited by applicant]
US 20220400922A1 · Mcclay et al. · 2022 [cited by applicant]
US 20220408994A1 · Hill · 2022 [cited by applicant]
US 20230043567A1 · Copeland et al. · 2023 [cited by applicant]
US 20230070147A1 · Harting et al. · 2023 [cited by applicant]
US 20230157495A1 · Copeland et al. · 2023 [cited by applicant]
US 20230248192A1 · Brown et al. · 2023 [cited by applicant]
US 20230255422A1 · Camplani et al. · 2023 [cited by applicant]
US 20230329502A1 · Chirikjian · 2023 [cited by applicant]
US 20240415352A1 · Mcclay et al. · 2024 [cited by applicant]
CN 1889882A · 2007 [cited by applicant]
CN 2881746Y · 2007 [cited by applicant]
CN 200954080Y · 2007 [cited by applicant]
CN 103217898A · 2013 [cited by applicant]
CN 103217977A · 2013 [cited by applicant]
CN 103458755A · 2013 [cited by applicant]
CN 104068787A · 2014 [cited by applicant]
CN 104111651A · 2014 [cited by applicant]
CN 104111652A · 2014 [cited by applicant]
CN 104245244 · 2014 [cited by applicant]
CN 104750105A · 2015 [cited by applicant]
CN 106843202A · 2017 [cited by applicant]
CN 210277064 · 2020 [cited by applicant]
DE 10113105A1 · 2001 [cited by applicant]
DE 19932552A1 · 2002 [cited by applicant]
DE 10311299B3 · 2004 [cited by applicant]
DE 10302908A1 · 2004 [cited by applicant]
DE 10346216B3 · 2004 [cited by applicant]
DE 10327223A1 · 2005 [cited by applicant]
DE 102005013365 · 2006 [cited by applicant]
DE 102007016802 · 2008 [cited by applicant]
DE 102007061385 · 2009 [cited by applicant]
DE 102012110996 · 2014 [cited by applicant]
DE 102013203659 · 2014 [cited by applicant]
EP 1136027A2 · 2001 [cited by applicant]
EP 1548532A1 · 2005 [cited by applicant]
EP 2457486 · 2012 [cited by applicant]
EP 2583608 · 2013 [cited by applicant]
EP 3332685 · 2018 [cited by applicant]
GB 2462720A · 2010 [cited by applicant]
GB 2497452A · 2013 [cited by applicant]
GB 2513960A · 2014 [cited by applicant]
JP H02241423 · 1990 [cited by applicant]
JP H06189877 · 1994 [cited by applicant]
JP H7136094 · 1995 [cited by applicant]
JP H07136094A · 1995 [cited by examiner]
JP 2002323925A · 2002 [cited by applicant]
JP 2002323926A · 2002 [cited by applicant]
JP 2003225184A · 2003 [cited by applicant]
JP 2003346150A · 2003 [cited by applicant]
JP 2005205028A · 2005 [cited by applicant]
JP 2005230044A · 2005 [cited by applicant]
JP 2007323119A · 2007 [cited by applicant]
JP 2007334666A · 2007 [cited by applicant]
JP 2010057647A · 2010 [cited by applicant]
JP 4689292B2 · 2011 [cited by examiner]
JP 2014021419A · 2014 [cited by examiner]
JP 2014079515A · 2014 [cited by applicant]
JP 2018078222A · 2018 [cited by examiner]
KR 20090019480A · 2009 [cited by examiner]
KR 101052166B1 · 2011 [cited by examiner]
KR 20110109705 · 2011 [cited by applicant]
KR 101156282 · 2012 [cited by applicant]
KR 101156282B1 · 2012 [cited by examiner]
KR 1020130053286 · 2013 [cited by applicant]
KR 20130070102A · 2013 [cited by examiner]
KR 20130105274A · 2013 [cited by examiner]
TW 200948333A · 2009 [cited by applicant]
WO 2000036969A1 · 2000 [cited by applicant]
WO 2002062194 · 2002 [cited by applicant]
WO 2006046044A1 · 2006 [cited by applicant]
WO 2007051972A1 · 2007 [cited by applicant]
WO 2008136570A1 · 2008 [cited by applicant]
WO 2013081516A1 · 2013 [cited by applicant]
WO 2016057181A1 · 2016 [cited by applicant]
Audiowell Electronics (GangZhou) Co., LTD., “Make intelligent cleaner more intelligent—Ultrasonic sensors dedicated to intelligent cleaner,” Release Time: Apr. 2, 2013, (May 13, 2019); http://www.audiowell.com/en/news-d… [cited by applicant]
Eidomohammadi, Nazli, “Wet and Dry Robotic Vacuum Cleaner a Concept Development Process,” Master of Science Thesis, Chalmers University of Technology, Sweden; (2014), 132 pages. [cited by applicant]
Everett, Dave, “Ultrasonic method for measuring surface hardness,” Mowbot Project; https://web.archive.org/web/19991009123141/http://www.idx.com.au/˜d . . . , 1 page. [cited by applicant]
Gavin, Andrew S., “A fast, cheap, and easy vision system for an autonomous vacuum cleaner,” Massachusetts Institute of Technology Artificial Intelligence Laboratory, Cambridge, MA; AAAI Technical Report FS-93-03; (1993)… [cited by applicant]
Hicks, II, et al., “A Survey of Robot Lawn Mowers,” Center for Robotics Research, ML 72, University of Cincinnati, OH, Proceedings of SPIE, vol. 4197; (2000); 8 pages. [cited by applicant]
Kuotsan et al, “A Technical Analysis of Autonomous Floor Cleaning Robots Based on US Granted Patents,” European International Journal of Science and Technology, vol. 2 No. 7; (Sep. 2013); 18 pages. [cited by applicant]
“LG HomBot 3.0 Robotic Vacuum Review—Pros and Cons”, Roboticall, https://www.roboticall.com/lg-hombot-3-0-robotic-vacuum/; (2014); 21 pages. [cited by applicant]
Rafaels, “The Lawn Ranger,” Radio Electronics vol. 61 No. 6, (Jun. 1990); 92 pages. [cited by applicant]
PCT Search Report and Written Opinion, mailed Sep. 2, 2021, received in corresponding PCT Application No. PCT/US2021/037028, 10 pages. [cited by applicant]
PCT Search Report and Written Opinion, mailed Sep. 15, 2021, received in corresponding PCT Application No. PCT/US2021/37035, 11 pages. [cited by applicant]
Extended European Search Report dated Oct. 24, 2024, received in European Patent Application No. 21821422.9, 9 pages. [cited by applicant]
U.S. Office Action issued Oct. 31, 2024, received in U.S. Appl. No. 17/345,695, 45 pages. [cited by applicant]
US Office Action issued Jun. 5, 2023, received in U.S. Appl. No. 17/345,695, 25 pages. [cited by applicant]
US Office Action issued Dec. 8, 2023, received in U.S. Appl. No. 17/345,695, 25 pages. [cited by applicant]
Extended European Search Report issued Jun. 25, 2024, received in European Patent Application No. 21822537.3, 7 pages. [cited by applicant]
U.S. Office Action issued Jul. 8, 2024, received in U.S. Appl. No. 17/345,695, 44 pages. [cited by applicant]
Chinese Office Action with machine-generated English translation issued Jun. 20, 2025, received in Chinese Application No. 202180048115.6, 15 pages. [cited by applicant]