Inventor · disambiguated record
James F. Kerr
Also filed as: KERR JAMES F · KERR JAMES W
16 granted patents·2 pending applications·263 citations·filing 1982–2013
94Inventor score
Top patents by PatentIndex Score
18 records- 0196US7757813B2Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during useMATERIAL CONTROL INC·Filed 2008·Granted Jul 20, 2010·29 cites·6 claims
- 0285US6964331B1Cantilever mounted rotary brush conveyor belt cleanerMATERIAL CONTROL INC·Filed 2004·Granted Nov 15, 2005·29 cites·19 claims
- 0383US6619427B1Foldable dual track ladderMATERIAL CONTROL INC·Filed 2002·Granted Sep 16, 2003·30 cites·23 claims
- 0480US4462523ADamaged conveyor belt detectorMATERIAL CONTROL INC·Filed 1982·Granted Jul 31, 1984·28 cites·15 claims
- 0568US4535883AShock mount telescoping conveyor belt cleanerMATERIAL CONTROL INC·Filed 1984·Granted Aug 20, 1985·18 cites·14 claims
- 0664US4533037ATelescoping conveyor belt cleanerMATERIAL CONTROL INC·Filed 1984·Granted Aug 6, 1985·16 cites·21 claims
- 0763US9435156B2Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during useMAT CONTROL INC·Filed 2013·Granted Sep 6, 2016·3 cites·16 claims
- 0862US8622171B2Dual track ladder with brake mechanism that is automatically applied to the upper tracks to hold the ladder in place during useKERR JAMES F·Filed 2010·Granted Jan 7, 2014·2 cites·20 claims
- 0961US9206643B2Leveling leg for a ladderMATERIAL CONTROL INC·Filed 2013·Granted Dec 8, 2015·3 cites·14 claims
- 1061US9051779B2Dual track ladder for use with mobile shelvingKERR JAMES F·Filed 2012·Granted Jun 9, 2015·2 cites·7 claims
- 1158US8882067B2Guide track system and components thereofKERR JAMES F·Filed 2011·Granted Nov 11, 2014·1 cites·19 claims
- 1256US5480002ADual track mounted ladder systemKERR JAMES F·Filed 1994·Granted Jan 2, 1996·24 cites·20 claims
- 1354US5080192ALadder with warning gateMATERIAL CONTROL INC·Filed 1990·Granted Jan 14, 1992·21 cites·17 claims
- 1450US5413191ADual track ladderMATERIAL CONTROL INC·Filed 1994·Granted May 9, 1995·19 cites·5 claims
- 1550US5082086AWheeled ladderMATERIAL CONTROL INC·Filed 1990·Granted Jan 21, 1992·19 cites·3 claims
- 1648US5653307ADual track mounted pivoting ladder assemblyMATERIAL CONTROL INC·Filed 1995·Granted Aug 5, 1997·19 cites·10 claims
- 1733US2003093496A1Resource service and method for location-independent resource deliveryFiled 2002·Application pending·0 cites
- 1831US2004019465A1Event router and method for handling events in distributing computing applicationsFiled 2003·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →