Individual holder
GRAHAM JOHN M
10 granted patents·133 citations·filing 1981–1993
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
10 records- 0181US4407548AAir service brake exhaust control systemGRAHAM JOHN M·Filed 1981·Granted Oct 4, 1983·21 cites·18 claims
- 0274US5154491AEmergency and parking brake systemGRAHAM JOHN M·Filed 1991·Granted Oct 13, 1992·21 cites·13 claims
- 0364US4749236AMechanically actuated, hydraulically deactuated brake systemGRAHAM JOHN M·Filed 1987·Granted Jun 7, 1988·12 cites·23 claims
- 0464US4589704AAir brake with collet locked push rod and air supply systemGRAHAM JOHN M·Filed 1984·Granted May 20, 1986·11 cites·24 claims
- 0562US4722575AMechanical emergency and parking brake systemGRAHAM JOHN M·Filed 1987·Granted Feb 2, 1988·11 cites·18 claims
- 0661US5361877ADiaphragm-type pneumatic brake actuator with closing valveGRAHAM JOHN M·Filed 1993·Granted Nov 8, 1994·13 cites·16 claims
- 0758US4973107ADual pressure air brake systemGRAHAM JOHN M·Filed 1989·Granted Nov 27, 1990·9 cites·27 claims
- 0856US5092745AAutomatic pressure-driven compressorGRAHAM JOHN M·Filed 1990·Granted Mar 3, 1992·19 cites·28 claims
- 0953US5255961AMulti-chamber brake actuatorGRAHAM JOHN M·Filed 1992·Granted Oct 26, 1993·8 cites·14 claims
- 1039US4440189ACorrosive fluid two way check relief valveGRAHAM JOHN M·Filed 1981·Granted Apr 3, 1984·8 cites·6 claims
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