Individual holder
PURVIANCE JOHN R
US·5 granted patents·80 citations·filing 1976–1990
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
5 records- 0172US5042542ARouter table gaugePURVIANCE JOHN R·Filed 1990·Granted Aug 27, 1991·36 cites·20 claims
- 0268US4130210ASelf-propelled airplane dollyPURVIANCE JOHN R·Filed 1977·Granted Dec 19, 1978·21 cites·9 claims
- 0345US4123195AChuck key holderPURVIANCE JOHN R·Filed 1977·Granted Oct 31, 1978·9 cites·8 claims
- 0442US4050697AGame and game apparatusPURVIANCE JOHN R·Filed 1976·Granted Sep 27, 1977·7 cites·17 claims
- 0539US4718797ASnap-on pad for chuck keyPURVIANCE JOHN R·Filed 1981·Granted Jan 12, 1988·7 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →