Inventor · disambiguated record
Jeffrey F. Birkel
Also filed as: BIRKEL JEFFREY F
3 granted patents·15 citations·filing 1997–2007
59Inventor score
Top patents by PatentIndex Score
3 records- 0149US5925857AInverted cone tuned exhaust systemFiled 1997·Granted Jul 20, 1999·14 cites·7 claims
- 0245US7793562B2Transmission and shift methodCATERPILLAR INC·Filed 2005·Granted Sep 14, 2010·1 cites·15 claims
- 0332US7942074B2Gearbox with synchronizing clutchTURNER POWERTRAIN SYTEMS LTD·Filed 2007·Granted May 17, 2011·0 cites·21 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →