Individual holder
KELLER ROBERT D
US·5 granted patents·59 citations·filing 2009–2011
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0197US8327750B2Valvetrain oil control system and oil control valveKELLER ROBERT D·Filed 2009·Granted Dec 11, 2012·46 cites·20 claims
- 0284US8459218B2Adjustable-stroke solenoid valveKELLER ROBERT D·Filed 2011·Granted Jun 11, 2013·7 cites·20 claims
- 0366US9022067B2Dual variable valve solenoid moduleKELLER ROBERT D·Filed 2009·Granted May 5, 2015·4 cites·31 claims
- 0450US8199021B2Fluid level detection systemKELLER ROBERT D·Filed 2009·Granted Jun 12, 2012·2 cites·20 claims
- 0546US8261708B2Control valve mounting systemKELLER ROBERT D·Filed 2010·Granted Sep 11, 2012·0 cites·16 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →