Inventor · disambiguated record
Mitchell I. Kieffer
Also filed as: KIEFFER MITCHELL I
19 granted patents·1 pending application·229 citations·filing 2002–2020
95Inventor score
Top patents by PatentIndex Score
20 records- 0193US10233692B2Foldable ladderCORE DISTRIB INC·Filed 2017·Granted Mar 19, 2019·16 cites·19 claims
- 0293US9416591B2Telescoping ladder with stabilizersCORE DISTRIB INC·Filed 2014·Granted Aug 16, 2016·24 cites·15 claims
- 0392US8225906B2Extendable/retractable ladderKIEFFER MITCHELL I·Filed 2008·Granted Jul 24, 2012·18 cites·21 claims
- 0490US7048094B2Extending ladder and associated manufacturing methodsURBAN SPORTING GOODS·Filed 2005·Granted May 23, 2006·21 cites·30 claims
- 0589US9580959B2Foldable ladderCORE DISTRIB INC·Filed 2014·Granted Feb 28, 2017·15 cites·19 claims
- 0689US8387753B2Ergonomic extendable/retractable ladderKIEFFER MITCHELL I·Filed 2006·Granted Mar 5, 2013·23 cites·11 claims
- 0787US6708800B2Extending ladder and associated manufacturing methodsCORE DISTRIB INC·Filed 2002·Granted Mar 23, 2004·31 cites·30 claims
- 0880USD624200SStep ladderCORE DISTRIB INC·Filed 2009·Granted Sep 21, 2010·25 cites·1 claims
- 0979US11174678B2Locking assembly for a telescoping ladderCORE DISTRIB INC·Filed 2018·Granted Nov 16, 2021·5 cites·20 claims
- 1078US11795760B2Ladder tripod assembly and systemCORE DISTRIB INC·Filed 2020·Granted Oct 24, 2023·1 cites·16 claims
- 1178US10753149B2Extendable / retractable ladderCORE DISTRIB INC·Filed 2018·Granted Aug 25, 2020·2 cites·9 claims
- 1278US6883645B2Extending ladder and associated manufacturing methodsURBAN SPORTING GOODS·Filed 2004·Granted Apr 26, 2005·21 cites·23 claims
- 1376US10053912B2Extendable / retractable ladderCORE DISTRIB INC·Filed 2017·Granted Aug 21, 2018·3 cites·10 claims
- 1463US10731413B2Foldable ladderCORE DISTRIB INC·Filed 2018·Granted Aug 4, 2020·1 cites·18 claims
- 1552US2012267197A1Extendable / retractable ladderKIEFFER MITCHELL I·Filed 2012·Application pending·0 cites
- 1646USD767784SHinge for a telescoping stepladderCORE DISTRIB INC·Filed 2014·Granted Sep 27, 2016·5 cites·1 claims
- 1744US10995547B2Telescoping ladder with a cascading collapse mechanismCORE DISTRIB INC·Filed 2017·Granted May 4, 2021·0 cites·22 claims
- 1843USD684278SCollapsible five legged stepstoolKIEFFER MITCHELL I·Filed 2012·Granted Jun 11, 2013·7 cites·1 claims
- 1940USD665927SMetal and wood step ladderKIEFFER MITCHELL I·Filed 2011·Granted Aug 21, 2012·6 cites·1 claims
- 2038USD593685STelescoping ladder rungCORE DISTRIB INC·Filed 2005·Granted Jun 2, 2009·5 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →