Inventor · disambiguated record
John Hartman
Also filed as: HARTMAN JOHN · HARTMAN JOHN F
8 granted patents·1 pending application·174 citations·filing 1980–2019
88Inventor score
Top patents by PatentIndex Score
9 records- 0190US4318555AStaplerEASTMAN KODAK CO·Filed 1980·Granted Mar 9, 1982·62 cites·12 claims
- 0288US6457751B1Locking assembly for an astragalFiled 2001·Granted Oct 1, 2002·51 cites·11 claims
- 0371US8149227B2Removing click and friction noise in a writing deviceMARGGRAFF JIM·Filed 2009·Granted Apr 3, 2012·8 cites·14 claims
- 0462US8672333B2Torque transmitting apparatus for a wheelHARTMAN JOHN·Filed 2011·Granted Mar 18, 2014·2 cites·20 claims
- 0557US4697838ARobot gripping jaw operatorHARTMAN JOHN F·Filed 1985·Granted Oct 6, 1987·28 cites·30 claims
- 0641US2020024945A1Opposed piston combustion engine using crank and camHARTMAN JOHN·Filed 2019·Application pending·0 cites
- 0733US4662813AMechanism for rotating a robot arm on an axisHARTMAN JOHN F·Filed 1985·Granted May 5, 1987·8 cites·24 claims
- 0831US4688985ARotary mechanism for robot armsHARTMAN JOHN F·Filed 1985·Granted Aug 25, 1987·7 cites·33 claims
- 0927US4603461AGarage door spring stretcherWHIPPIE JERALD R·Filed 1984·Granted Aug 5, 1986·8 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →