Inventor · disambiguated record
William C. Kalkwarf
Also filed as: KALKWARF WILLIAM C
3 granted patents·1 pending application·80 citations·filing 2007–2008
75Inventor score
Technology areasA47B
Files withMASTER LOCK CO4
Top patents by PatentIndex Score
4 records- 0181USD574629SChestMASTER LOCK CO·Filed 2008·Granted Aug 12, 2008·34 cites·1 claims
- 0275USD588849SCabinetMASTER LOCK CO·Filed 2008·Granted Mar 24, 2009·24 cites·1 claims
- 0372USD587047SChest and cabinetMASTER LOCK CO·Filed 2008·Granted Feb 24, 2009·22 cites·1 claims
- 0456US2008129158A1Storage case with internal frameMASTER LOCK CO·Filed 2007·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →