Inventor · disambiguated record
John Matthew Pieprzak
Also filed as: PIEPRZAK JOHN · PIEPRZAK JOHN M · PIEPRZAK JOHN MATTHEW
4 granted patents·1 pending application·42 citations·filing 1988–2009
74Inventor score
Top patents by PatentIndex Score
5 records- 0177US8151758B2Bearing system for automotive engineNI BEN XUEHAI·Filed 2009·Granted Apr 10, 2012·9 cites·15 claims
- 0266US4896635AFriction reducing rocker arm constructionFORD MOTOR CO·Filed 1988·Granted Jan 30, 1990·21 cites·9 claims
- 0345US4867113AReduced friction engine tappet constructionFORD MOTOR CO·Filed 1988·Granted Sep 19, 1989·11 cites·6 claims
- 0443US8511269B2Camshaft system for internal combustion engineREINHART PAUL·Filed 2006·Granted Aug 20, 2013·1 cites·12 claims
- 0540US2009026015A1Oil Pan With Flow Management TunnelFORD GLOBAL TECH LLC·Filed 2007·Application pending·0 cites
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →