Individual holder
PETRIE JOHN A
4 granted patents·86 citations·filing 1978–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
4 records- 0184US4256010ABeveled retaining ring and method for constructing the samePETRIE JOHN A·Filed 1979·Granted Mar 17, 1981·28 cites·10 claims
- 0279US4184242ABeveled retaining ring and method for constructing the samePETRIE JOHN A·Filed 1978·Granted Jan 22, 1980·22 cites·11 claims
- 0361US4687399ARetaining rings including orienting slot and hole configurations, and apparatus and method of ring orientationPETRIE JOHN A·Filed 1986·Granted Aug 18, 1987·18 cites·5 claims
- 0454US5079977ARetaining ring toolsPETRIE JOHN A·Filed 1990·Granted Jan 14, 1992·18 cites·34 claims
Join the waitlist — get patent alerts
Get an alert when PETRIE JOHN A files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →