IP Library › Granted Patent US 12,539,953
Granted Patent B1
US 12,539,953 · App. 18/047,360 · Granted Feb 3, 2026

Configurable shift and throttle mechanism for tiller of marine drive

Inventor: David J. Belter (Oshkosh, WI)
Assignee: Brunswick Corporation
B63H21/213
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Quick Facts
Patent No.
US 12,539,953
App. No.
18/047,360
Granted
Feb 3, 2026
Kind
B1
Abstract

A tiller system for a marine drive having an electric motor is provided. The tiller system includes a tiller having a shift handle and a throttle grip configured to be rotated about a throttle axis to control a speed of the electric motor. The tiller system further includes a controller communicatively coupled to the throttle grip and the shift handle. The controller is configured to determine whether the tiller is in a separate handle mode or a throttle grip mode. Responsive to a determination that the tiller is in the throttle grip mode, the controller is configured to operate the electric motor such that a rotation of the throttle grip about the throttle axis controls a rotation direction of the electric motor.

Claims (43)

1 . A tiller system for a marine drive having an electric motor, the tiller system comprising:

a tiller comprising a shift handle and a throttle grip configured to be rotated about a throttle axis to control a speed of the electric motor; and

a controller communicatively coupled to the throttle grip and the shift handle, wherein the controller is configured to:

determine whether the tiller is in a separate handle mode or a throttle grip mode; and

responsive to a determination that that the tiller is in the throttle grip mode, operate the electric motor such that a rotation of the throttle grip about the throttle axis controls a rotation direction of the electric motor.

2 . The tiller system of claim 1 , wherein operating the electric motor such that a rotation of the throttle grip about the throttle axis controls the rotation direction of the electric motor comprises rotating the throttle grip through a first range of motion from a neutral position to a first maximum speed position in a first rotation direction and through a second range of motion from a neutral position to a second maximum speed position in a second rotation direction.

3 . The tiller system of claim 2 , wherein the first range of motion is separate and distinct from the second range of motion.

4 . The tiller system of claim 2 , wherein the first range of motion is oppositely oriented with respect to the second range of motion.

5 . The tiller system of claim 1 , wherein the controller is further configured to operate the electric motor such that a position of the shift handle controls a rotation direction of the electric motor responsive to a determination that the tiller is in the separate handle mode.

6 . The tiller system of claim 1 , wherein the determination that the tiller is in the separate handle mode or the throttle grip mode is based on a user input received at a user interface device that is communicably coupled to the controller.

7 . The tiller system of claim 6 , wherein the user input further comprises selection of right hand operation or left hand operation of the throttle grip.

8 . The tiller system of claim 1 , wherein the shift handle is detachable from the tiller.

9 . A method for controlling an electric motor of a marine drive using a tiller comprising a shift handle and a throttle grip configured to be rotated about a throttle axis to control a speed of the electric motor, the method comprising:

determining whether the tiller is in a separate handle mode or a throttle grip mode; and

responsive to a determination that the tiller is in the throttle grip mode, operating the electric motor such that a rotation of the throttle grip about the throttle axis controls a rotation direction of the electric motor.

10 . The method of claim 9 , wherein operating the electric motor such that a rotation of the throttle grip about the throttle axis controls the rotation direction of the electric motor comprises rotating the throttle grip through a first range of motion from a neutral position to a first maximum speed position in a first rotation direction and through a second range of motion from a neutral position to a second maximum speed position in a second rotation direction.

11 . The method of claim 10 , wherein the first range of motion is separate and distinct from the second range of motion.

12 . The method of claim 10 , wherein the first range of motion is oppositely oriented with respect to the second range of motion.

13 . The method of claim 9 , wherein the method further comprises:

responsive to a determination that the tiller is in the separate handle mode, operating the electric motor such that a position of the shift handle controls a rotation direction of the electric motor.

14 . The method of claim 9 , wherein the determination whether the tiller is in the separate handle mode or the throttle grip mode is based on a user input received at a user interface device.

15 . The method of claim 14 , wherein the user input further comprises selection of right hand operation or left hand operation of the throttle grip.

16 . A method for operating an electric motor of a marine drive, the method comprising:

providing a tiller system comprising a shift handle configured to be rotated about a shift axis to control a rotation direction of the electric motor and a throttle grip configured to be rotated about a throttle axis to control a speed of the electric motor; and

reconfiguring the tiller system such that a rotation of the throttle grip about the throttle axis controls the rotation direction of the electric motor.

17 . The method of claim 16 , wherein reconfiguring the tiller system comprises detaching the shift handle from the tiller system.

18 . The method of claim 17 , wherein reconfiguring the tiller system further comprises coupling a cap to the tiller system to cover a recess formed by detachment of the shift handle.

19 . The method of claim 16 , wherein reconfiguring the tiller system comprises removing a restriction device configured to restrain rotation of the throttle grip.

20 . The method of claim 19 , wherein the restriction device is a pin.

21 . The method of claim 16 , wherein reconfiguring the tiller system comprises receiving a user input from a user interface device.

22 . The method of claim 21 , wherein the user input further comprises selection of right hand operation or left hand operation of the throttle grip.

23 . A marine drive configured to propel a marine vessel, the marine drive comprising:

a propulsor;

a tiller handle;

a first control device on the tiller handle;

a second control device on the tiller handle spaced apart from the first control device; and

a controller configured to control a rotation direction and a rotation speed of the propulsor and operable in a first mode and a second mode;

wherein the first mode comprises control of the rotation direction of the propulsor according to input received at the first control device and control of the rotation speed of the propulsor according to input received at the second control device; and

wherein the second mode comprises control of the rotation direction and the rotation speed of the propulsor according to input received at the second control device.

24 . The marine drive of claim 23 , wherein the input received at the second control device in the second mode comprises rotation of the second control device away from a neutral position in both a first direction and a second direction opposite the first direction.

25 . The marine drive of claim 24 , wherein the input received at the second control device in the first mode comprises rotation of the second control device away from the neutral position in only the first direction.

26 . The marine drive of claim 24 , wherein the first direction corresponds with forward propulsion of the marine vessel and the second direction corresponds with rearward propulsion of the marine vessel.

27 . The marine drive of claim 23 , wherein the first control device comprises a lever and wherein the second control device comprises a rotatable grip.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Oct 18, 2022
From: BELTER, DAVID J.
To: BRUNSWICK CORPORATION
Reel/Frame 061453/0747 →
References Cited (278)
US 1854196A · Irgens · 1932 [cited by applicant]
US 2363854A · Bierenfeld · 1944 [cited by applicant]
US D188325S · Brown · 1960 [cited by applicant]
US 3018754A · Snyder et al. · 1962 [cited by applicant]
US 3636911A · Piazza · 1972 [cited by applicant]
US 3693576A · Driscoll · 1972 [cited by applicant]
US 3865334A · Wair, Jr. · 1975 [cited by applicant]
US 3955527A · Holtermann · 1976 [cited by applicant]
US 3961595A · Meyer · 1976 [cited by applicant]
US D246853S · Berchem · 1978 [cited by applicant]
US 4071002A · Frahm · 1978 [cited by applicant]
US 4295835A · Mapes et al. · 1981 [cited by applicant]
US 4318699A · Wenstadt et al. · 1982 [cited by applicant]
US 4331431A · Estes · 1982 [cited by applicant]
US D272357S · Hall et al. · 1984 [cited by applicant]
US 4447214A · Henrich · 1984 [cited by applicant]
US D276811S · Wolfe · 1984 [cited by applicant]
US 4496326A · Boda · 1985 [cited by applicant]
US 4504778A · Evans · 1985 [cited by applicant]
US 4521201A · Watanabe · 1985 [cited by applicant]
US 4582493A · Toyohara · 1986 [cited by applicant]
US 4650429A · Boda · 1987 [cited by applicant]
US 4701141A · Sumigawa · 1987 [cited by applicant]
US D295867S · Walsh · 1988 [cited by applicant]
US 4800854A · Boda et al. · 1989 [cited by applicant]
US 4838820A · Boda et al. · 1989 [cited by applicant]
US 4878468A · Boda et al. · 1989 [cited by applicant]
US 4895154A · Bartelt · 1990 [cited by applicant]
US 4897061A · Koepsel et al. · 1990 [cited by applicant]
US 4911665A · Hetzel · 1990 [cited by applicant]
US 5072809A · Shibata · 1991 [cited by applicant]
US D323508S · Hirshberg et al. · 1992 [cited by applicant]
US 5145427A · Kawai et al. · 1992 [cited by applicant]
US D332265S · Osumi · 1993 [cited by applicant]
US 5180320A · Calamia et al. · 1993 [cited by applicant]
US D341365S · Little et al. · 1993 [cited by applicant]
US D343625S · Walthall · 1994 [cited by applicant]
US 5277634A · Calamia et al. · 1994 [cited by applicant]
US 5340342A · Boda et al. · 1994 [cited by applicant]
US D352723S · DeBraal et al. · 1994 [cited by applicant]
US 5378178A · Haman · 1995 [cited by applicant]
US D359290S · Takeuchi · 1995 [cited by applicant]
US 5509836A · Ogasawara et al. · 1996 [cited by applicant]
US 5540606A · Strayhorn · 1996 [cited by applicant]
US D373113S · Stringer · 1996 [cited by applicant]
US 5632657A · Henderson · 1997 [cited by applicant]
US D380478S · Robbins · 1997 [cited by applicant]
US D387775S · Iekura · 1997 [cited by applicant]
US 5707262A · Huntley et al. · 1998 [cited by applicant]
US 5756949A · Sato · 1998 [cited by applicant]
US 5797777A · Tsunekawa et al. · 1998 [cited by applicant]
US D412911S · Iekura · 1999 [cited by applicant]
US 5967866A · Willows et al. · 1999 [cited by applicant]
US D416871S · Todd · 1999 [cited by applicant]
US D418519S · Iekura · 2000 [cited by applicant]
US 6020563A · Risk, Jr. et al. · 2000 [cited by applicant]
US D421444S · Hatch et al. · 2000 [cited by applicant]
US D428616S · Iekura · 2000 [cited by applicant]
US 6093066A · Isogawa et al. · 2000 [cited by applicant]
US 6109986A · Gaynor et al. · 2000 [cited by applicant]
US 6146221A · Natsume · 2000 [cited by applicant]
US D438493S · Mulliniks et al. · 2001 [cited by applicant]
US 6264513B1 · Marsh · 2001 [cited by applicant]
US 6264516B1 · McEathron et al. · 2001 [cited by applicant]
US D447123S · Winkler · 2001 [cited by applicant]
US 6273771B1 · Buckley et al. · 2001 [cited by applicant]
US D448037S · Westimayer et al. · 2001 [cited by applicant]
US 6352456B1 · Jaszewski et al. · 2002 [cited by applicant]
US D457166S · Burmeister et al. · 2002 [cited by applicant]
US 6382122B1 · Gaynor et al. · 2002 [cited by applicant]
US D458273S · Burmeister et al. · 2002 [cited by applicant]
US 6406342B1 · Walczak et al. · 2002 [cited by applicant]
US 6406343B2 · Kawai et al. · 2002 [cited by applicant]
US D460459S · Hansen · 2002 [cited by applicant]
US D460465S · Williams · 2002 [cited by applicant]
US D460972S · Osumi · 2002 [cited by applicant]
US D462363S · Burmeister et al. · 2002 [cited by applicant]
US D463447S · Osumi et al. · 2002 [cited by applicant]
US D463448S · Osumi et al. · 2002 [cited by applicant]
US D463449S · Osumi · 2002 [cited by applicant]
US D463800S · Osumi · 2002 [cited by applicant]
US D466907S · Ohsumi · 2002 [cited by applicant]
US 6494431B1 · McCoy · 2002 [cited by applicant]
US D470154S · Burmeister et al. · 2003 [cited by applicant]
US 6524148B2 · Yoshigasaki et al. · 2003 [cited by applicant]
US D474480S · Zebley, Jr. et al. · 2003 [cited by applicant]
US D474784S · Sanschagrin et al. · 2003 [cited by applicant]
US 6558213B1 · McGowan · 2003 [cited by applicant]
US D478597S · Zebley, Jr. · 2003 [cited by applicant]
US 6648703B2 · McChesney et al. · 2003 [cited by applicant]
US 6663450B1 · Walczak et al. · 2003 [cited by applicant]
US D485847S · Sanschagrin et al. · 2004 [cited by applicant]
US D485848S · Sanschagrin et al. · 2004 [cited by applicant]
US D486500S · Okamoto · 2004 [cited by applicant]
US D489380S · Ohsumi et al. · 2004 [cited by applicant]
US D495345S · Farlow et al. · 2004 [cited by applicant]
US D495716S · Sanschagrin et al. · 2004 [cited by applicant]
US D497370S · Katoh · 2004 [cited by applicant]
US D498485S · Kuwae · 2004 [cited by applicant]
US D498764S · Sanschagrin et al. · 2004 [cited by applicant]
US D500056S · Young et al. · 2004 [cited by applicant]
US 6875066B2 · Wolaver · 2005 [cited by applicant]
US 6902450B2 · Ohtsuki et al. · 2005 [cited by applicant]
US 6914202B2 · Sugimoto et al. · 2005 [cited by applicant]
US 7001231B1 · Halley et al. · 2006 [cited by applicant]
US D517096S · Landers et al. · 2006 [cited by applicant]
US 7090551B1 · Lokken et al. · 2006 [cited by applicant]
US D527737S · Lekura · 2006 [cited by applicant]
US D528128S · Sanschagrin et al. · 2006 [cited by applicant]
US D528563S · Sanschagrin et al. · 2006 [cited by applicant]
US D531639S · Okamoto · 2006 [cited by applicant]
US D531640S · Okamoto · 2006 [cited by applicant]
US D536704S · Iekura · 2007 [cited by applicant]
US D537838S · Iekura · 2007 [cited by applicant]
US 7210973B2 · Sanschagri et al. · 2007 [cited by applicant]
US 7214113B2 · Kojima · 2007 [cited by applicant]
US D549240S · Okamoto · 2007 [cited by applicant]
US 7267592B1 · Ingebritson et al. · 2007 [cited by applicant]
US D552129S · Steinberg · 2007 [cited by applicant]
US D552130S · Steinberg et al. · 2007 [cited by applicant]
US D560050S · Tokach et al. · 2008 [cited by applicant]
US D563907S · Badarello · 2008 [cited by applicant]
US D565607S · Moen et al. · 2008 [cited by applicant]
US 7404747B2 · Shinde et al. · 2008 [cited by applicant]
US D578274S · Tokach et al. · 2008 [cited by applicant]
US 7442104B2 · Okabe · 2008 [cited by applicant]
US 7455558B2 · Yander · 2008 [cited by applicant]
US D584317S · Okamoto · 2009 [cited by applicant]
US D589981S · Iekura · 2009 [cited by applicant]
US 7553206B2 · Hasegawa et al. · 2009 [cited by applicant]
US 7666038B2 · Yomo et al. · 2010 [cited by applicant]
US D611062S · Okamoto · 2010 [cited by applicant]
US D611063S · Okamoto · 2010 [cited by applicant]
US D611501S · Vignau et al. · 2010 [cited by applicant]
US D611502S · Vignau et al. · 2010 [cited by applicant]
US 7677938B2 · Wiatrowski et al. · 2010 [cited by applicant]
US 7704110B2 · Wiatrowski et al. · 2010 [cited by applicant]
US 7736207B2 · Vignau · 2010 [cited by applicant]
US D623661S · Yamagishi et al. · 2010 [cited by applicant]
US D624567S · Kelley · 2010 [cited by applicant]
US D626975S · Ryczek et al. · 2010 [cited by applicant]
US D629818S · Rummer et al. · 2010 [cited by applicant]
US D635154S · Rummer et al. · 2011 [cited by applicant]
US 7895959B1 · Angel et al. · 2011 [cited by applicant]
US D635586S · Okamoto · 2011 [cited by applicant]
US 7976354B2 · Kubota et al. · 2011 [cited by applicant]
US D643440S · Dannenberg et al. · 2011 [cited by applicant]
US 8106617B1 · Holley · 2012 [cited by applicant]
US D655308S · Steinberg · 2012 [cited by applicant]
US D655320S · Hiraoka et al. · 2012 [cited by applicant]
US D657400S · Loew · 2012 [cited by applicant]
US D660323S · Hiraoka et al. · 2012 [cited by applicant]
US D660614S · Palmeiri · 2012 [cited by applicant]
US D663321S · Okamoto · 2012 [cited by applicant]
US 8257122B1 · Holley · 2012 [cited by applicant]
US 8651906B1 · Morton · 2014 [cited by applicant]
US D706313S · Higashikawa et al. · 2014 [cited by applicant]
US D707729S · Jackson et al. · 2014 [cited by applicant]
US D708233S · Furuki et al. · 2014 [cited by applicant]
US D709918S · Jones, Sr. · 2014 [cited by applicant]
US D712931S · Matsumoto · 2014 [cited by applicant]
US D714345S · Petit et al. · 2014 [cited by applicant]
US D715333S · Jacobsthal et al. · 2014 [cited by applicant]
US D716846S · Carter et al. · 2014 [cited by applicant]
US 8930050B2 · Garon et al. · 2015 [cited by applicant]
US D727969S · Okamoto · 2015 [cited by applicant]
US 9004964B2 · Grez · 2015 [cited by applicant]
US D728640S · Turner et al. · 2015 [cited by applicant]
US 9039469B1 · Calamia et al. · 2015 [cited by applicant]
US 9073616B1 · Wiegele et al. · 2015 [cited by applicant]
US 9109616B1 · Ballentine · 2015 [cited by applicant]
US D740858S · Dannenberg et al. · 2015 [cited by applicant]
US 9180950B1 · Davenport et al. · 2015 [cited by applicant]
US 9205906B1 · Eichinger · 2015 [cited by applicant]
US 9216805B1 · Amerling et al. · 2015 [cited by applicant]
US D757126S · Vaninetti et al. · 2016 [cited by applicant]
US 9359059B1 · Scherer, III et al. · 2016 [cited by applicant]
US 9359981B1 · Waisanen et al. · 2016 [cited by applicant]
US 9376194B1 · Jensen et al. · 2016 [cited by applicant]
US 9422045B2 · Kinpara et al. · 2016 [cited by applicant]
US 9481438B1 · Tuchscherer · 2016 [cited by applicant]
US 9580947B1 · Amerling et al. · 2017 [cited by applicant]
US 9587601B1 · Ochiai · 2017 [cited by applicant]
US D791189S · Scherer, III et al. · 2017 [cited by applicant]
US 9694892B1 · Anschuetz et al. · 2017 [cited by applicant]
US 9701383B1 · Stuber et al. · 2017 [cited by applicant]
US D794078S · Vaninetti · 2017 [cited by applicant]
US D794079S · Vaninetti et al. · 2017 [cited by applicant]
US 9764813B1 · Zarembka et al. · 2017 [cited by applicant]
US 9783278B1 · Dannenberg et al. · 2017 [cited by applicant]
US 9789945B1 · Vaninetti et al. · 2017 [cited by applicant]
US 9840316B1 · Jaszewski · 2017 [cited by applicant]
US D806752S · Vaninetti et al. · 2018 [cited by applicant]
US D807920S · Vaninetti · 2018 [cited by applicant]
US D809017S · Noda et al. · 2018 [cited by applicant]
US 9868501B1 · Gable et al. · 2018 [cited by applicant]
US 9926064B1 · Tuchscherer · 2018 [cited by applicant]
US D816716S · Abellera et al. · 2018 [cited by applicant]
US D832472S · Davis et al. · 2018 [cited by applicant]
US D834617S · Zin et al. · 2018 [cited by applicant]
US D834618S · Zin et al. · 2018 [cited by applicant]
US D835675S · Nakaura et al. · 2018 [cited by applicant]
US 10155578B1 · Osthelder et al. · 2018 [cited by applicant]
US D842504S · Davis et al. · 2019 [cited by applicant]
US 10246173B1 · Ingebritson · 2019 [cited by applicant]
US D852230S · Zin et al. · 2019 [cited by applicant]
US D852848S · Zin et al. · 2019 [cited by applicant]
US D852849S · Zin et al. · 2019 [cited by applicant]
US D852850S · Zin et al. · 2019 [cited by applicant]
US 10343759B2 · Despineux · 2019 [cited by applicant]
US D859469S · Zin et al. · 2019 [cited by applicant]
US 10507898B1 · Belter et al. · 2019 [cited by applicant]
US 10578042B2 · Buis · 2020 [cited by applicant]
US D886865S · Bailey · 2020 [cited by applicant]
US 10696367B1 · Ingebritson et al. · 2020 [cited by applicant]
US 10723429B1 · Wiatrowski et al. · 2020 [cited by applicant]
US 10787236B1 · Erickson · 2020 [cited by applicant]
US D911296S · Li · 2021 [cited by applicant]
US 10940917B2 · Montague et al. · 2021 [cited by applicant]
US D917565S · Vaninetti et al. · 2021 [cited by applicant]
US 10981639B2 · Kimpara et al. · 2021 [cited by applicant]
US 11084563B1 · Pielow et al. · 2021 [cited by applicant]
US 11097824B1 · Anderson, Jr. · 2021 [cited by applicant]
US 11097826B1 · Dannenberg et al. · 2021 [cited by applicant]
US 11186352B1 · Ingebritson et al. · 2021 [cited by applicant]
US 11352118B1 · Dengel et al. · 2022 [cited by applicant]
US 11597486B1 · Pielow · 2023 [cited by examiner]
US 11628919B1 · Pielow et al. · 2023 [cited by applicant]
US 20020142680A1 · Anderson · 2002 [cited by applicant]
US 20030024456A1 · Swetish · 2003 [cited by applicant]
US 20030176121A1 · Kitsu · 2003 [cited by applicant]
US 20030194927A1 · Sanschagrin et al. · 2003 [cited by applicant]
US 20030232548A1 · Alby et al. · 2003 [cited by applicant]
US 20040107789A1 · Peppard · 2004 [cited by applicant]
US 20040121667A1 · Okabe · 2004 [cited by applicant]
US 20040137806A1 · Ohtsuki et al. · 2004 [cited by applicant]
US 20050262958A1 · Kojima · 2005 [cited by applicant]
US 20060172631A1 · Kameoka · 2006 [cited by applicant]
US 20070042652A1 · Kitsu et al. · 2007 [cited by applicant]
US 20070197109A1 · Yander · 2007 [cited by applicant]
US 20080038967A1 · Shinde · 2008 [cited by applicant]
US 20080268729A1 · Yomo et al. · 2008 [cited by applicant]
US 20090075534A1 · Wiatrowski et al. · 2009 [cited by applicant]
US 20100147257A1 · Yazaki et al. · 2010 [cited by applicant]
US 20110104963A1 · Ellis · 2011 [cited by applicant]
US 20130280970A1 · Clarkson et al. · 2013 [cited by applicant]
US 20140057508A1 · Litjens et al. · 2014 [cited by applicant]
US 20140306505A1 · Koch · 2014 [cited by applicant]
US 20160023740A1 · Skrzypchak et al. · 2016 [cited by applicant]
US 20170043787A1 · Mangette et al. · 2017 [cited by applicant]
US 20170306830A1 · Bruestle et al. · 2017 [cited by applicant]
US 20190176952A1 · Clark et al. · 2019 [cited by applicant]
US 20200156751A1 · Skrzypchak et al. · 2020 [cited by applicant]
US 20200172220A1 · Chung · 2020 [cited by applicant]
US 20210061431A1 · McGinley · 2021 [cited by applicant]
US 20230102741A1 · Fergus · 2023 [cited by applicant]
US 20230257091A1 · Ahlswede · 2023 [cited by applicant]
US 20230257092A1 · Ahlswede et al. · 2023 [cited by applicant]
US 20230257094A1 · Jaszewski et al. · 2023 [cited by applicant]
AU 2019100942 · 2019 [cited by applicant]
CA 2367740 · 2002 [cited by applicant]
EP 1101696 · 2001 [cited by applicant]
EP 1400720 · 2004 [cited by applicant]
EP 3326903 · 2019 [cited by applicant]
JP S6038293 · 1985 [cited by applicant]
JP 3946315 · 2007 [cited by applicant]
JP 4094151 · 2008 [cited by applicant]
JP 2011213215 · 2011 [cited by applicant]
JP 2013173423 · 2013 [cited by applicant]
JP 5741259 · 2015 [cited by applicant]
JP 5927980 · 2016 [cited by applicant]
WO WO2004035381 · 2004 [cited by applicant]
Belter, Unpublished U.S. Appl. No. 18/047,360, filed Oct. 18, 2022, “Configurable Shift and Throttle Mechanism for Tiller of Marine Drive” (specification and drawings only). [cited by applicant]
Erikson, et al., “Tiller Tilt Lock and Automatic Release System”, Unpublished U.S. Appl. No. 16/257,380, filed Jan. 25, 2019 (specification and drawings only). [cited by applicant]
Mercury Marine, 15/20hp EFI Fourstroke Outboard Tiller, tiller handle, available at least as early as Nov. 17, 2017. [cited by applicant]
Mercury Marine, Big Tiller for 75-300 HP Mercury Outboards, tiller handle, available at least as early as 2018, admitted prior art. [cited by applicant]
Pielow et al., “Tiller for Outboard Motor,” Unpublished U.S. Appl. No. 16/718,566, filed Dec. 18, 2019 (specification and drawings only). [cited by applicant]
Vaninetti et al, “Tiller for Outboard Motor,” Unpublished U.S. Appl. No. 29/610,556, filed Jul. 13, 2017. [cited by applicant]