Assignee
DELTA SYSTEMS INC
US·69 granted patents·5 pending applications·1,473 citations·filing 1977–2021
Top patents by PatentIndex Score
74 records- 0195US6618022B2Radio frequency powered switchDELTA SYSTEMS INC·Filed 2002·Granted Sep 9, 2003·62 cites·69 claims
- 0295US6457545B1Hall effect seat switchDELTA SYSTEMS INC·Filed 2000·Granted Oct 1, 2002·95 cites·11 claims
- 0394US4894019ATorsion spring shorting connectorDELTA SYSTEMS INC·Filed 1989·Granted Jan 16, 1990·99 cites·7 claims
- 0493US9053877B2Plunger switch and method of using sameDELTA SYSTEMS INC·Filed 2013·Granted Jun 9, 2015·13 cites·19 claims
- 0593US6609357B1Lawn and garden control moduleDELTA SYSTEMS INC·Filed 2002·Granted Aug 26, 2003·145 cites·67 claims
- 0692US4336778ASafety limiter for engine speedDELTA SYSTEMS INC·Filed 1980·Granted Jun 29, 1982·60 cites·22 claims
- 0787US5662213ATrim switch with waterproof bootDELTA SYSTEMS INC·Filed 1996·Granted Sep 2, 1997·67 cites·13 claims
- 0886US7131509B2Reverse operation safety circuitDELTA SYSTEMS INC·Filed 2006·Granted Nov 7, 2006·20 cites·23 claims
- 0986US6655975B1Sealed housing assemblyDELTA SYSTEMS INC·Filed 2002·Granted Dec 2, 2003·34 cites·20 claims
- 1085USD472883STerminal configuration of a three pole plunger switchDELTA SYSTEMS INC·Filed 2001·Granted Apr 8, 2003·31 cites·1 claims
- 1185US6501281B1Capacitive, operator-sensing circuit for disabling engine of mobile power equipmentDELTA SYSTEMS INC·Filed 2000·Granted Dec 31, 2002·41 cites·36 claims
- 1285US4294327ASafety interlock for machine and engine with magneto ignitionDELTA SYSTEMS INC·Filed 1978·Granted Oct 13, 1981·36 cites·7 claims
- 1383US9794652B2Smart monitoring system and method of operationDELTA SYSTEMS INC·Filed 2014·Granted Oct 17, 2017·16 cites·14 claims
- 1482US8352116B2Tilt and/or acceleration sensing apparatus and methodDELTA SYSTEMS INC·Filed 2010·Granted Jan 8, 2013·17 cites·27 claims
- 1582US5190019AInterlock circuit for de-activating an engineDELTA SYSTEMS INC·Filed 1991·Granted Mar 2, 1993·24 cites·11 claims
- 1682US4924046ATrim switchDELTA SYSTEMS INC·Filed 1988·Granted May 8, 1990·28 cites·11 claims
- 1781US5424502AQuick-install seat switchDELTA SYSTEMS INC·Filed 1993·Granted Jun 13, 1995·36 cites·7 claims
- 1879US7488914B2Plunger switchDELTA SYSTEMS INC·Filed 2007·Granted Feb 10, 2009·17 cites·22 claims
- 1979US6543560B1Hydrostatic transmission with integral actuatorDELTA SYSTEMS INC·Filed 2000·Granted Apr 8, 2003·33 cites·16 claims
- 2077US7777639B2Indicator display moduleDELTA SYSTEMS INC·Filed 2007·Granted Aug 17, 2010·8 cites·31 claims
- 2177US7237633B2Reverse operation safety circuitDELTA SYSTEMS INC·Filed 2005·Granted Jul 3, 2007·10 cites·9 claims
- 2277US7154814B2Digital engine hour meter for outdoor power equipmentDELTA SYSTEMS INC·Filed 2004·Granted Dec 26, 2006·22 cites·31 claims
- 2375US5528007APlunger switch and method of manufactureDELTA SYSTEMS INC·Filed 1994·Granted Jun 18, 1996·28 cites·11 claims
- 2474US7629543B2Switch assembly having a mechanically actuated overrideDELTA SYSTEMS INC·Filed 2007·Granted Dec 8, 2009·10 cites·15 claims
- 2574US7422078B2Reverse operation safety circuitDELTA SYSTEMS INC·Filed 2007·Granted Sep 9, 2008·8 cites·15 claims
- 2674US7128177B2Reverse operation safety circuitDELTA SYSTEMS INC·Filed 2003·Granted Oct 31, 2006·15 cites·28 claims
- 2774US5252791AIgnition switchDELTA SYSTEMS INC·Filed 1991·Granted Oct 12, 1993·26 cites·8 claims
- 2874US4369745ASafety interlock for machine and engine with magneto ignitionDELTA SYSTEMS INC·Filed 1981·Granted Jan 25, 1983·29 cites·4 claims
- 2972US5756947AIgnition switchDELTA SYSTEMS INC·Filed 1996·Granted May 26, 1998·28 cites·23 claims
- 3072US4839478APush button safety switchDELTA SYSTEMS INC·Filed 1988·Granted Jun 13, 1989·18 cites·17 claims
- 3172US4812604ATorsion spring contact switchDELTA SYSTEMS INC·Filed 1987·Granted Mar 14, 1989·19 cites·9 claims
- 3271US5221816APlunger switchDELTA SYSTEMS INC·Filed 1991·Granted Jun 22, 1993·25 cites·10 claims
- 3370US9460872B2Plunger switch and method of operating sameDELTA SYSTEMS INC·Filed 2014·Granted Oct 4, 2016·3 cites·16 claims
- 3470USD500744SSwitchDELTA SYSTEMS INC·Filed 2003·Granted Jan 11, 2005·17 cites·1 claims
- 3570US6483061B1Triple pole safety switch and connectorDELTA SYSTEMS INC·Filed 2001·Granted Nov 19, 2002·16 cites·39 claims
- 3669US11801744B2Hybrid mower with electric blade control systemDELTA SYSTEMS INC·Filed 2021·Granted Oct 31, 2023·0 cites·20 claims
- 3769US4795865ASafety switch for automatic de-activation of a motor vehicleDELTA SYSTEMS INC·Filed 1987·Granted Jan 3, 1989·38 cites·4 claims
- 3868US7812473B2Auxiliary component control for use with a lawn and garden tractorDELTA SYSTEMS INC·Filed 2007·Granted Oct 12, 2010·6 cites·15 claims
- 3968US6305525B1Pressureless infeed conveyor tableDELTA SYSTEMS INC·Filed 1999·Granted Oct 23, 2001·31 cites·20 claims
- 4068US5190148AMarine key switchDELTA SYSTEMS INC·Filed 1991·Granted Mar 2, 1993·20 cites·24 claims
- 4167US7513322B2Reverse operation safety circuitDELTA SYSTEMS INC·Filed 2008·Granted Apr 7, 2009·6 cites·6 claims
- 4267US6835090B1Sealed housing assemblyDELTA SYSTEMS INC·Filed 2003·Granted Dec 28, 2004·19 cites·5 claims
- 4367US6377168B1Engine operation detecting circuit for a visual displayDELTA SYSTEMS INC·Filed 2000·Granted Apr 23, 2002·15 cites·15 claims
- 4467US5613598ASwitch mountingDELTA SYSTEMS INC·Filed 1995·Granted Mar 25, 1997·22 cites·8 claims
- 4566US7520264B2Ignition circuitDELTA SYSTEMS INC·Filed 2007·Granted Apr 21, 2009·5 cites·23 claims
- 4666US7064639B2Electromagnetic latching switchDELTA SYSTEMS INC·Filed 2004·Granted Jun 20, 2006·13 cites·32 claims
- 4765US9779899B1Switch assembly and method of operating sameDELTA SYSTEMS INC·Filed 2015·Granted Oct 3, 2017·1 cites·15 claims
- 4865US7034674B2Hour meter with incremental service indicatorDELTA SYSTEMS INC·Filed 2004·Granted Apr 25, 2006·12 cites·23 claims
- 4964US9679712B2Switch assembly and method of using sameDELTA SYSTEMS INC·Filed 2013·Granted Jun 13, 2017·2 cites·16 claims
- 5062US8970396B1Hourmeter system and methodDELTA SYSTEMS INC·Filed 2013·Granted Mar 3, 2015·3 cites·15 claims
Showing the top 50 of 74 patent records by PatentIndex Score.
Join the waitlist — get patent alerts
Get an alert when DELTA SYSTEMS INC files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →