Assignee
KELLER ERNST
US·15 granted patents·2 pending applications·248 citations·filing 1974–2012
Top patents by PatentIndex Score
17 records- 0193US8075690B2Diffuser gravity supportKELLER ERNST·Filed 2008·Granted Dec 13, 2011·24 cites·12 claims
- 0278US4325241ASystem for the increase of the number of differing locking possibilities in rotary cylinder locksKELLER ERNST·Filed 1980·Granted Apr 20, 1982·35 cites·6 claims
- 0374US7059160B2Rotary locking cylinder for a safety lockKELLER ERNST·Filed 2001·Granted Jun 13, 2006·24 cites·16 claims
- 0470US4252490ABall retrieving and storage deviceKELLER ERNST·Filed 1978·Granted Feb 24, 1981·30 cites·14 claims
- 0568US8899082B2Closing deviceKELLER ERNST·Filed 2006·Granted Dec 2, 2014·4 cites·26 claims
- 0665US4553452AMethod for producing security keys having closure possibilities differing from one anotherKELLER ERNST·Filed 1983·Granted Nov 19, 1985·22 cites·4 claims
- 0765US4137739ALock cylinder for a safety lockKELLER ERNST·Filed 1977·Granted Feb 6, 1979·21 cites·9 claims
- 0864US4292824ADouble sided tumbler cylinder for a security lockKELLER ERNST·Filed 1979·Granted Oct 6, 1981·19 cites·1 claims
- 0962US6973814B2Safety key and locking cylinder, and locking system with such safety keys and locking cylindersKELLER ERNST·Filed 2003·Granted Dec 13, 2005·11 cites·15 claims
- 1056US4630513AAutomatic dip trimmer apparatusKELLER ERNST·Filed 1985·Granted Dec 23, 1986·15 cites·18 claims
- 1152US4905489ATumbler in a cylinder lockKELLER ERNST·Filed 1987·Granted Mar 6, 1990·16 cites·10 claims
- 1252US3930390AEspagnolette lockKELLER ERNST·Filed 1974·Granted Jan 6, 1976·9 cites·7 claims
- 1352US2007039563A1Dog leash and control apparatusKELLER ERNST·Filed 2005·Application pending·0 cites
- 1449US8695387B2Closing deviceKELLER ERNST·Filed 2011·Granted Apr 15, 2014·0 cites·11 claims
- 1544US2015114058A1Rotary Locking Cylinder and Security KeyKELLER ERNST·Filed 2012·Application pending·0 cites
- 1643US5349830ALock systemKELLER ERNST·Filed 1991·Granted Sep 27, 1994·15 cites·7 claims
- 1733US4686816ADip tube loader and handler apparatusKELLER ERNST·Filed 1986·Granted Aug 18, 1987·3 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →