IP Library › Granted Patent US 12,364,834
Granted Patent B2
US 12,364,834 · App. 17/039,512 · Granted Jul 22, 2025

Nasal seal and respiratory interface

Inventors: Silas Sao Jin Siew (Auckland, NZ); Amit Galgali (Auckland, NZ); Ryan Anthony Graham (Auckland, NZ); Mark Andrew Thompson (Auckland, NZ); Olivia Marie Allan (Auckland, NZ); Bruno Sintive (Auckland, NZ)
Assignee: Fisher & Paykel Healthcare Limited
A61M16/0666A61M16/06A61M16/0616A61M16/0683A61M16/0825A61M2210/0618
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Quick Facts
Patent No.
US 12,364,834
App. No.
17/039,512
Granted
Jul 22, 2025
Kind
B2
Abstract

A nasal seal for a respiratory interface comprises a supple lower-nose-receiving center part having a concave shape pre-formed to receive and sealingly contact the tip, lower sides, and base of the nose and sealingly contact the upper lip, and position an aperture for gas flow beneath the nares of wearer. The seal may have resilience or memory towards this preformed shape.

Claims (48)

1. A nasal seal for a mask interface, the nasal seal comprising:

a wearer side comprising:

a nose-receiving portion having a concave shape and configured to sealingly contact a tip, lower sides, and base of a nose of a wearer and to sealingly contact an upper lip of the wearer, and

an aperture for gas flow configured to be positioned beneath nares of the wearer; and

an external side comprising:

an opening configured to pass gas flow to the wearer through the aperture,

a first stabilizing portion that extends on a first side of the opening,

a first fold comprising a pair of spaced-apart first sidewall portions connected by an arcuate first end wall, the first fold configured to provide transverse movement of the first stabilizing portion,

a second stabilizing portion that extends on a second opposite side of the opening,

a second fold comprising a pair of spaced-apart second sidewall portions connected by an arcuate second end wall, the second fold configured to provide transverse movement of the second stabilizing portion,

wherein an entirety of the first fold is positioned on the first stabilizing portion and an entirety of the second fold is positioned on the second stabilizing portion, the first fold and the second fold are discontinuous from one another such that a top wall of the external side of the nasal seal is uninterrupted by the first fold and the second fold and a bottom wall of the external side of the nasal seal is uninterrupted by the first fold and the second fold, and

wherein a thickness of the first stabilizing portion is greater than a thickness of the first fold and a thickness of the second stabilizing portion is greater than a thickness of the second fold.

2. The nasal seal of claim 1 , wherein the first fold and the second fold are directed into an interior of the nasal seal.

3. The nasal seal of claim 1 , wherein the first fold and the second fold extend partially in a depth of a hollow interior of the nasal seal.

4. The nasal seal of claim 1 , wherein the first fold and the second fold extend partially across a width of a hollow interior of the nasal seal.

5. The nasal seal of claim 1 , wherein the nose-receiving portion comprises a left side wall and a right side wall to contact a left lower side of the nose and a right lower side of the nose of the wearer.

6. The nasal seal of claim 5 , wherein at least an upper section of the left side wall and an upper section of the right side wall have a convex shape on opposite sides of the nasal seal.

7. The nasal seal of claim 6 , wherein the convex shape of upper sections of a left side wall and a right side wall are above the aperture in a height of the nasal seal.

8. The nasal seal of claim 1 , wherein the nose-receiving portion comprises an upper wall portion above the aperture to contact the tip of the nose of the wearer, a lower wall portion below the aperture, and rearward of the upper wall portion to contact the upper lip below the nose of the wearer.

9. The nasal seal of claim 8 , wherein the upper wall portion and the lower wall portion have discrete curved shapes.

10. The nasal seal of claim 1 , wherein a wall thickness of the nasal seal reduces from the external side of the nasal seal to the wearer side of the nasal seal.

11. The nasal seal of claim 1 , wherein the first fold is the only fold in the first stabilizing portion and the second fold is the only fold in the second stabilizing portion.

12. The nasal seal of claim 1 , wherein the nasal seal has a forward side closer to the opening and a rearward side further from the opening, wherein a portion of the first stabilizing portion is located on each of the forward side and the rearward side of the first fold, and a portion of the second stabilizing portion is located on each of the forward side and the rearward side of the second fold.

13. The nasal seal of claim 1 , wherein the opening defines a length axis of the nasal seal, wherein the first fold and the second fold are located an equal distance from the opening along the length axis.

14. An interface comprising:

a seal comprising:

an inner side configured to create a sealing contact between a nose and an upper lip of a patient,

an opening configured to pass gas flow to the patient,

an outer side comprising:

a first stabilizing portion that extends on a first side of the opening,

a single first fold comprising a pair of spaced-apart first sidewall portions connected by an arcuate first end wall, the first fold configured to provide transverse movement of the first stabilizing portion,

a second stabilizing portion that extends on a second opposite side of the opening,

a single second fold comprising a pair of spaced-apart second sidewall portions connected by an arcuate second end wall, the second fold configured to provide transverse movement of the second stabilizing portion,

wherein an entirety of the first fold is positioned on the first stabilizing portion and an entirety of the second fold is positioned on the second stabilizing portion, the first fold and the second fold are discontinuous from one another, and

wherein a thickness of the first stabilizing portion is greater than a thickness of the first fold and a thickness of the second stabilizing portion is greater than a thickness of the second fold; and

a frame configured to retain the seal and move transversely relative to the inner side of the seal without breaking the sealing contact.

15. The interface of claim 14 , wherein the first fold and the second fold of the seal are directed into an interior of the seal.

16. The interface of claim 14 , wherein the first fold and the second fold of the seal extend partially in a depth of a hollow interior of the seal.

17. The interface of claim 14 , wherein the first fold and the second fold of the seal extend partially across a width of a hollow interior of the seal.

18. The interface of claim 14 , wherein the inner side further comprises a nose-receiving portion comprising a left side wall and a right side wall to contact a left lower side and a right lower side of the nose of the patient.

19. The interface of claim 18 , wherein at least an upper section of the left side wall and an upper section of the right side wall have a convex shape on opposite sides of the seal.

20. The interface of claim 18 , wherein the nose-receiving portion comprises an upper wall portion above an aperture to contact a tip of the nose of the patient, a lower wall portion below the aperture, and rearward of the upper wall portion to contact the upper lip below the nose of the patient.

21. The interface of claim 20 , wherein the upper wall portion and the lower wall portion have discrete curved shapes.

22. The interface of claim 14 , wherein the frame comprises left and right side arms which extend outwardly and rearwardly past left and right extremities of the seal, wherein the left and right side arms extend upwardly at an angle selected such that the left and right side arms extend along left and right cheeks of the patient, and wherein the left and right side arms connect to a headgear for holding the interface on a face of the patient.

23. The interface of claim 14 , wherein a wall thickness of the seal reduces from an external side of the seal to a patient side of the seal.

24. The interface of claim 14 , wherein a top wall of the outer side of the seal is uninterrupted by the first fold and the second fold and a bottom wall of the outer side of the seal is uninterrupted by the first fold and the second fold.

25. The interface of claim 14 , wherein the seal has a forward side closer to the opening and a rearward side further from the opening, wherein a portion of the first stabilizing portion is located on each of the forward side and the rearward side of the first fold, and a portion of the second stabilizing portion is located on each of the forward side and the rearward side of the second fold.

26. The interface of claim 14 , wherein the opening defines a length axis of the seal, wherein the first fold and the second fold are located an equal distance from the opening along the length axis.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 25, 2025
From: SIEW, SILAS SAO JIN; GALGALI, AMIT; GRAHAM, RYAN ANTHONY; THOMPSON, MARK ANDREW; ALLAN, OLIVIA MARIE; SINTIVE, BRUNO
To: FISHER & PAYKEL HEALTHCARE LIMITED
Reel/Frame 071524/0460 →
Continuity (3)
Continuation 14442923
Provisional Application 61727322 · Nov 16, 2012
Related Publication 20210244906A1 · Aug 12, 2021
References Cited (247)
US 1610793A · Leo · 1926 [cited by applicant]
US 2353643A · Bulbulian · 1944 [cited by applicant]
US 2452722A · Boothby et al. · 1948 [cited by applicant]
US 2620794A · George · 1952 [cited by applicant]
US 2881444A · Fresh · 1959 [cited by examiner]
US 2970593A · Seeler · 1961 [cited by applicant]
US 3040741A · Carolan · 1962 [cited by applicant]
US 3042035A · George · 1962 [cited by applicant]
US 3065747A · Charles · 1962 [cited by applicant]
US 3079917A · Godfrey · 1963 [cited by applicant]
US 3295529A · Stephen et al. · 1967 [cited by applicant]
US 3530031A · Loew · 1970 [cited by applicant]
US 3792702A · Delest · 1974 [cited by applicant]
US 3815596A · Keener et al. · 1974 [cited by applicant]
US 3824999A · King · 1974 [cited by applicant]
US 3850168A · Ferguson et al. · 1974 [cited by applicant]
US 3850171A · Ball et al. · 1974 [cited by applicant]
US 4033353A · La Rosa · 1977 [cited by applicant]
US 4454880A · Muto et al. · 1984 [cited by applicant]
US 4480639A · Peterson et al. · 1984 [cited by applicant]
US 4513896A · Hirsch · 1985 [cited by applicant]
US 4753233A · Grimes · 1988 [cited by applicant]
US 4915105A · Lee · 1990 [cited by applicant]
US 4947488A · Ashinoff · 1990 [cited by applicant]
US 4960121A · Nelson et al. · 1990 [cited by applicant]
US 5237986A · Seppala et al. · 1993 [cited by applicant]
US 5485837A · Solesbee et al. · 1996 [cited by applicant]
US 5560354A · Berthon-Jones et al. · 1996 [cited by applicant]
US 5657752A · Landis et al. · 1997 [cited by applicant]
US 5676133A · Hickle et al. · 1997 [cited by applicant]
US 5724965A · Handke et al. · 1998 [cited by applicant]
US 5832918A · Pantino · 1998 [cited by applicant]
US 5921239A · McCall et al. · 1999 [cited by applicant]
US 6019101A · Cotner et al. · 2000 [cited by applicant]
US 6119694A · Correa et al. · 2000 [cited by applicant]
US 6338342B1 · Fecteau et al. · 2002 [cited by applicant]
US 6386198B1 · Rugless · 2002 [cited by applicant]
US 6418929B1 · Norfleet · 2002 [cited by applicant]
US 6431172B1 · Bordewick · 2002 [cited by applicant]
US 6467483B1 · Kopacko et al. · 2002 [cited by applicant]
US 6470886B1 · Jestrabek-Hart · 2002 [cited by applicant]
US 6497232B2 · Fecteau et al. · 2002 [cited by applicant]
US 6561190B1 · Kwok · 2003 [cited by applicant]
US 6581594B1 · Drew et al. · 2003 [cited by applicant]
US 6584977B1 · Serowski · 2003 [cited by applicant]
US 6591837B1 · Byram · 2003 [cited by applicant]
US 6729333B2 · Barnett et al. · 2004 [cited by applicant]
US 6892729B2 · Smith et al. · 2005 [cited by applicant]
US 6928657B2 · Bell et al. · 2005 [cited by applicant]
US 6951218B2 · Gradon et al. · 2005 [cited by applicant]
US 7077139B2 · Amante et al. · 2006 [cited by applicant]
US 7178525B2 · Matula, Jr. · 2007 [cited by examiner]
US 7255106B2 · Gallem et al. · 2007 [cited by applicant]
US 7353827B2 · Geist · 2008 [cited by applicant]
US 7448386B2 · Ho et al. · 2008 [cited by applicant]
US 7461656B2 · Gunaratnam et al. · 2008 [cited by applicant]
US 7493902B2 · White et al. · 2009 [cited by applicant]
US 7556043B2 · Ho et al. · 2009 [cited by applicant]
US 7658189B2 · Davidson et al. · 2010 [cited by applicant]
US 7703457B2 · Barnett et al. · 2010 [cited by applicant]
US 7743767B2 · Ging et al. · 2010 [cited by applicant]
US 7753051B2 · Burrow et al. · 2010 [cited by applicant]
US 7845352B2 · Sleeper et al. · 2010 [cited by applicant]
US 7856982B2 · Matula, Jr. et al. · 2010 [cited by applicant]
US 7874291B2 · Ging et al. · 2011 [cited by applicant]
US 7874293B2 · Gunaratnam et al. · 2011 [cited by applicant]
US 7896003B2 · Matula et al. · 2011 [cited by applicant]
US 7931023B2 · Berthon-Jones et al. · 2011 [cited by applicant]
US 7975694B2 · Ho · 2011 [cited by applicant]
US 7997267B2 · Ging et al. · 2011 [cited by applicant]
US 8042546B2 · Gunaratnam et al. · 2011 [cited by applicant]
US 8061355B2 · Jaffre et al. · 2011 [cited by applicant]
US 8100126B2 · McAuley et al. · 2012 [cited by applicant]
US 8118027B2 · Matula, Jr. et al. · 2012 [cited by applicant]
US 8127764B2 · Ho et al. · 2012 [cited by applicant]
US 8127765B2 · Ho et al. · 2012 [cited by applicant]
US 8132270B2 · Lang et al. · 2012 [cited by applicant]
US 8161971B2 · Jaffe et al. · 2012 [cited by applicant]
US 8186352B2 · Gunaratnam et al. · 2012 [cited by applicant]
US 8291906B2 · Kooij et al. · 2012 [cited by applicant]
US 8297285B2 · Henry et al. · 2012 [cited by applicant]
US 8371302B2 · Ging et al. · 2013 [cited by applicant]
US 8397728B2 · D'Souza et al. · 2013 [cited by applicant]
US 8505535B2 · Jones et al. · 2013 [cited by applicant]
US 8550084B2 · Ng et al. · 2013 [cited by applicant]
US 8573201B2 · Rummery et al. · 2013 [cited by applicant]
US 8573212B2 · Lynch et al. · 2013 [cited by applicant]
US 8636007B2 · Rummery et al. · 2014 [cited by applicant]
US 8701667B1 · Ho · 2014 [cited by examiner]
US 8950404B2 · Formica et al. · 2015 [cited by applicant]
US 9032955B2 · Lubke et al. · 2015 [cited by applicant]
US 9044564B2 · Dravitzki et al. · 2015 [cited by applicant]
US 9095673B2 · Barlow et al. · 2015 [cited by applicant]
US 9149594B2 · Kooij et al. · 2015 [cited by applicant]
US 9517320B2 · Barlow et al. · 2016 [cited by applicant]
US 9539403B2 · Eves et al. · 2017 [cited by applicant]
US 10821250B2 · Siew et al. · 2020 [cited by applicant]
US 20030196655A1 · Ging et al. · 2003 [cited by applicant]
US 20040211427A1 · Jones et al. · 2004 [cited by applicant]
US 20040226566A1 · Gunaratnam et al. · 2004 [cited by applicant]
US 20050051171A1 · Booth · 2005 [cited by applicant]
US 20050076912A1 · Eifler et al. · 2005 [cited by applicant]
US 20050199242A1 · Matula, Jr. · 2005 [cited by examiner]
US 20060042629A1 · Geist · 2006 [cited by applicant]
US 20060169286A1 · Eifler et al. · 2006 [cited by applicant]
US 20070062536A1 · McAuley et al. · 2007 [cited by applicant]
US 20070095350A1 · Darkin et al. · 2007 [cited by applicant]
US 20070125384A1 · Zollinger · 2007 [cited by examiner]
US 20070175479A1 · Groll · 2007 [cited by applicant]
US 20070175480A1 · Gradon et al. · 2007 [cited by applicant]
US 20080047560A1 · Veliss et al. · 2008 [cited by applicant]
US 20080092904A1 · Gunaratnam et al. · 2008 [cited by applicant]
US 20080092906A1 · Gunaratnam et al. · 2008 [cited by applicant]
US 20080190432A1 · Blochlinger et al. · 2008 [cited by applicant]
US 20080196727A1 · Ho et al. · 2008 [cited by applicant]
US 20080210241A1 · Schulz et al. · 2008 [cited by applicant]
US 20090044808A1 · Guney et al. · 2009 [cited by applicant]
US 20090078264A1 · Martin et al. · 2009 [cited by applicant]
US 20090120442A1 · Ho · 2009 [cited by examiner]
US 20090139526A1 · Melidis et al. · 2009 [cited by applicant]
US 20090151729A1 · Judson et al. · 2009 [cited by applicant]
US 20090151733A1 · Welchel et al. · 2009 [cited by applicant]
US 20090199856A1 · Berlin · 2009 [cited by applicant]
US 20090223519A1 · Eifler et al. · 2009 [cited by applicant]
US 20100000544A1 · Blaszczykiewicz et al. · 2010 [cited by applicant]
US 20100006101A1 · McAuley et al. · 2010 [cited by applicant]
US 20100132717A1 · Davidson et al. · 2010 [cited by applicant]
US 20100192955A1 · Biener et al. · 2010 [cited by applicant]
US 20100192957A1 · Hobson et al. · 2010 [cited by applicant]
US 20100229868A1 · Rummery et al. · 2010 [cited by applicant]
US 20100294281A1 · Ho · 2010 [cited by examiner]
US 20100313891A1 · Veliss et al. · 2010 [cited by applicant]
US 20100319700A1 · Ng et al. · 2010 [cited by applicant]
US 20110000492A1 · Veliss et al. · 2011 [cited by applicant]
US 20110067704A1 · Kooij · 2011 [cited by examiner]
US 20110126841A1 · Matula, Jr. et al. · 2011 [cited by applicant]
US 20110146685A1 · Allan · 2011 [cited by examiner]
US 20110232649A1 · Collazo et al. · 2011 [cited by applicant]
US 20110240030A1 · Ho et al. · 2011 [cited by applicant]
US 20110247627A1 · Omura et al. · 2011 [cited by applicant]
US 20110265796A1 · Amarasinghe et al. · 2011 [cited by applicant]
US 20110308526A1 · Ho et al. · 2011 [cited by applicant]
US 20110315141A1 · Lavi et al. · 2011 [cited by applicant]
US 20120037161A1 · Ging et al. · 2012 [cited by applicant]
US 20120067349A1 · Barlow · 2012 [cited by examiner]
US 20120132209A1 · Rummery et al. · 2012 [cited by applicant]
US 20120138060A1 · Barlow · 2012 [cited by applicant]
US 20120152255A1 · Barlow et al. · 2012 [cited by applicant]
US 20120204880A1 · Smith · 2012 [cited by examiner]
US 20120216812A1 · Pastoor et al. · 2012 [cited by applicant]
US 20120222680A1 · Eves et al. · 2012 [cited by applicant]
US 20120266890A1 · Baecke et al. · 2012 [cited by applicant]
US 20120304999A1 · Swift et al. · 2012 [cited by applicant]
US 20120318270A1 · McAuley et al. · 2012 [cited by applicant]
US 20130000648A1 · Madaus et al. · 2013 [cited by applicant]
US 20130037030A1 · Matula, Jr. · 2013 [cited by applicant]
US 20130133664A1 · Startare · 2013 [cited by examiner]
US 20130139822A1 · Gibson et al. · 2013 [cited by applicant]
US 20130152937A1 · Jablonski · 2013 [cited by applicant]
US 20130213400A1 · Barlow · 2013 [cited by examiner]
US 20130220327A1 · Barlow et al. · 2013 [cited by applicant]
US 20130319422A1 · Ho et al. · 2013 [cited by applicant]
US 20140026890A1 · Haskard et al. · 2014 [cited by applicant]
US 20140053844A1 · Rummery et al. · 2014 [cited by applicant]
US 20140060544A1 · Matula, Jr. et al. · 2014 [cited by applicant]
US 20140073847A1 · Mujwid et al. · 2014 [cited by applicant]
US 20140150798A1 · Fong et al. · 2014 [cited by applicant]
US 20140166018A1 · Dravitzki et al. · 2014 [cited by applicant]
US 20140174448A1 · Dravitzki et al. · 2014 [cited by applicant]
US 20140190486A1 · Dunn et al. · 2014 [cited by applicant]
US 20140209098A1 · Dunn et al. · 2014 [cited by applicant]
US 20140238402A1 · Austin et al. · 2014 [cited by applicant]
US 20150090268A1 · Madaus et al. · 2015 [cited by applicant]
US 20150128953A1 · Formica et al. · 2015 [cited by applicant]
US 20150151071A1 · Moger et al. · 2015 [cited by applicant]
US 20150174355A1 · Willard et al. · 2015 [cited by applicant]
US 20150182719A1 · Grashow et al. · 2015 [cited by applicant]
US 20150290415A1 · Dunn · 2015 [cited by applicant]
US 20150328423A1 · Siew et al. · 2015 [cited by applicant]
US 20150352307A1 · Rutan · 2015 [cited by applicant]
AU 2005100738A4 · 2005 [cited by applicant]
AU 2013345489 · 2014 [cited by applicant]
AU 2018211236 · 2020 [cited by applicant]
CN 101861181 · 2010 [cited by applicant]
CN 102648018 · 2012 [cited by applicant]
CN 102665810A · 2012 [cited by applicant]
EP 1057494A2 · 2000 [cited by applicant]
EP 1488820A2 · 2004 [cited by applicant]
EP 1163923A2 · 2011 [cited by applicant]
EP 2444113A2 · 2012 [cited by applicant]
EP 2481435A2 · 2012 [cited by applicant]
EP 2919842 · 2015 [cited by applicant]
GB 377926A · 1932 [cited by applicant]
GB 823887A · 1959 [cited by applicant]
GB 826198A · 1959 [cited by applicant]
GB 880942A · 1961 [cited by applicant]
GB 974960A · 1964 [cited by applicant]
GB 1049604A · 1966 [cited by applicant]
GB 2367757A · 2002 [cited by applicant]
GB 2522582 · 2019 [cited by applicant]
WO WO1993021788A1 · 1993 [cited by applicant]
WO WO1997000092A1 · 1997 [cited by applicant]
WO WO1997048432A1 · 1997 [cited by applicant]
WO WO9804310A1 · 1998 [cited by applicant]
WO WO200211804A2 · 2002 [cited by applicant]
WO WO2004073778A1 · 2004 [cited by applicant]
WO WO2005094928A1 · 2005 [cited by applicant]
WO WO2007022562A1 · 2007 [cited by applicant]
WO WO2007064665 · 2007 [cited by applicant]
WO WO2008007985A1 · 2008 [cited by applicant]
WO WO2009026627A1 · 2009 [cited by applicant]
WO WO2009052560A1 · 2009 [cited by applicant]
WO WO2009144695A1 · 2009 [cited by applicant]
WO WO2010131189A1 · 2010 [cited by applicant]
WO WO2010135785A1 · 2010 [cited by applicant]
WO WO2010139014 · 2010 [cited by applicant]
WO WO2011062510A1 · 2011 [cited by applicant]
WO WO2011142678A1 · 2011 [cited by applicant]
WO WO2012020359 · 2012 [cited by applicant]
WO 2012025843A1 · 2012 [cited by applicant]
WO WO2012028995A1 · 2012 [cited by applicant]
WO WO2012045127A1 · 2012 [cited by applicant]
WO WO2012052902A2 · 2012 [cited by applicant]
WO WO2012055886A1 · 2012 [cited by applicant]
WO WO2013006065A1 · 2013 [cited by applicant]
WO WO2013071359A1 · 2013 [cited by applicant]
WO WO2013170290A1 · 2013 [cited by applicant]
WO WO2014013371 · 2014 [cited by applicant]
WO WO2014015382A1 · 2014 [cited by applicant]
WO WO2014015383A1 · 2014 [cited by applicant]
WO WO2014021722 · 2014 [cited by applicant]
WO WO2014110622A1 · 2014 [cited by applicant]
WO WO2014110626A1 · 2014 [cited by applicant]
WO WO2014124323A1 · 2014 [cited by applicant]
WO WO2014181214A1 · 2014 [cited by applicant]
WO WO2014183167 · 2014 [cited by applicant]
WO WO2014077708 · 2015 [cited by applicant]
WO WO2015070289A1 · 2015 [cited by applicant]
International Search Report; PCT/NZ2013/000211; dated Apr. 4, 2014; 6 pages. [cited by applicant]
Written Opinion of the ISA; PCT/NZ2013/000211; dated Apr. 4, 2014; 5 pages. [cited by applicant]
Australian Examination Report; dated Jun. 29, 2017; 4 pages. [cited by applicant]
GB Examination Report; GB1508505.3; dated Sep. 26, 2018; 3 pages. [cited by applicant]
UK Examination Report; Application No. GB1508505.3, dated May 1, 2019; 4 pages. [cited by applicant]
UK Combined Search and Examination Report, Application No. GB1909174.3, dated Jul. 11, 2019, in 3 pages. [cited by applicant]
China National Intellectual Property Administration, Notification of the First Office Action, Application No. 201810056771.0, dated Jan. 17, 2020. [cited by applicant]
European Patent Office, Examination Report, Application No. 13 854 902.7-1122, dated Mar. 10, 2020, in 14 pages. [cited by applicant]
Chinese Examination Report for Application No. 2018 10056771.0 dated Sep. 25, 2020, 9 pages. [cited by applicant]