Inventor · disambiguated record
Kenneth R. Cornwall
Also filed as: CORNWALL KENNETH R
34 granted patents·1 pending application·1,384 citations·filing 1978–2018
98Inventor score
Top patents by PatentIndex Score
35 records- 0199US6405502B1Firestop assembly comprising intumescent material within a metal extension mounted on the inner surface of a plastic couplingFiled 2000·Granted Jun 18, 2002·139 cites·15 claims
- 0299US6305133B1Self sealing firestop coupling assemblyFiled 2000·Granted Oct 23, 2001·139 cites·7 claims
- 0399US4261598AConcrete floor embedded coupling for plastic pipeCORNWALL KENNETH R·Filed 1979·Granted Apr 14, 1981·100 cites·11 claims
- 0499US4233697AProtective flange cover and method of useCORNWALL KENNETH R·Filed 1978·Granted Nov 18, 1980·125 cites·6 claims
- 0597US6679015B1Hub seal firestop deviceFiled 2002·Granted Jan 20, 2004·79 cites·28 claims
- 0696US6470635B2Coupling assembly with intumescent materialFiled 2001·Granted Oct 29, 2002·59 cites·17 claims
- 0795US7810847B1Sleeve couplingCORNWALL KENNETH R·Filed 2006·Granted Oct 12, 2010·31 cites·9 claims
- 0895US4623170ACouplingCORNWALL KENNETH R·Filed 1983·Granted Nov 18, 1986·95 cites·14 claims
- 0990US9982823B1Pipe couplingCORNWALL KENNETH R·Filed 2017·Granted May 29, 2018·6 cites·14 claims
- 1089US6795987B2Trap guard deviceFiled 2002·Granted Sep 28, 2004·52 cites·9 claims
- 1188US6336297B1Self sealing firestop coupling assemblyFiled 1999·Granted Jan 8, 2002·56 cites·12 claims
- 1287USD260170SProtective cover for a sewer pipe flangeKEN WALL INCORPORATED·Filed 1978·Granted Aug 11, 1981·23 cites·1 claims
- 1386US8813336B1Sleeve couplingCORNWALL KENNETH R·Filed 2010·Granted Aug 26, 2014·7 cites·13 claims
- 1486US6883187B2Toilet flange assemblyFiled 2002·Granted Apr 26, 2005·27 cites·23 claims
- 1585US5035097ACoupling for concrete wall or floor mountingCORNWALL KENNETH R·Filed 1987·Granted Jul 30, 1991·56 cites·3 claims
- 1683US10627329B1Pipe tester deviceCORNWALL KENNETH R·Filed 2018·Granted Apr 21, 2020·3 cites·20 claims
- 1782US8191330B1Firestop drain assemblyCORNWALL KENNETH R·Filed 2008·Granted Jun 5, 2012·17 cites·6 claims
- 1882US4953235ATrap fitting assemblyCORNWALL KENNETH R·Filed 1988·Granted Sep 4, 1990·47 cites·18 claims
- 1981US6637464B1Hydrostatic test capFiled 2002·Granted Oct 28, 2003·28 cites·16 claims
- 2080US8438807B1Firestop drain assemblyCORNWALL KENNETH R·Filed 2012·Granted May 14, 2013·7 cites·21 claims
- 2177US4724858AFirestop stack fittingCORNWALL KENNETH R·Filed 1987·Granted Feb 16, 1988·31 cites·23 claims
- 2276US7913718B1Noise reduction systemCORNWALL KENNETH R·Filed 2009·Granted Mar 29, 2011·8 cites·12 claims
- 2376US5293724ACoupling assembly for corrugated decks and method for connecting theretoCORNWALL KENNETH R·Filed 1992·Granted Mar 15, 1994·45 cites·33 claims
- 2469US4583565AFirestop stack fitting and coupling combinationCORNWALL KENNETH R·Filed 1983·Granted Apr 22, 1986·21 cites·19 claims
- 2563US6161564AFire transmission prevention systemFiled 1999·Granted Dec 19, 2000·22 cites·22 claims
- 2662USD589127SPlumbing fittingCORNWALL KENNETH R·Filed 2007·Granted Mar 24, 2009·12 cites·1 claims
- 2761US5076309AFirestop stub-out assemblyCORNWALL KENNETH R·Filed 1991·Granted Dec 31, 1991·20 cites·48 claims
- 2860US5183070AFirestop device for flammable floor constructionCORNWALL KENNETH R·Filed 1991·Granted Feb 2, 1993·20 cites·22 claims
- 2960US4638829AFirestop fitting for carrier mounted water closetsCORNWALL KENNETH R·Filed 1985·Granted Jan 27, 1987·24 cites·8 claims
- 3060US4420176AElastomeric joint for use between rigid fittings and rigid pipe and method of useCORNWALL KENNETH R·Filed 1981·Granted Dec 13, 1983·23 cites·10 claims
- 3159US5040351ACoupling for concrete wall or floor mountingCORNWALL KENNETH R·Filed 1988·Granted Aug 20, 1991·18 cites·4 claims
- 3258US5127425AHorizontal firestop fittingCORNWALL KENNETH R·Filed 1991·Granted Jul 7, 1992·18 cites·45 claims
- 3354US5263746AAdjustably mounted fitting assemblyCORNWALL KENNETH R·Filed 1992·Granted Nov 23, 1993·21 cites·45 claims
- 3445US2005150037A1Drainage systemFiled 2004·Application pending·0 cites
- 3535US5325549ATrap fitting assembly for mounting in flammable floorsCORNWALL KENNETH R·Filed 1993·Granted Jul 5, 1994·5 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →