Individual holder
CLARK WILLIAM H
8 granted patents·138 citations·filing 1975–1983
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
8 records- 0176US4424971ACube puzzleCLARK WILLIAM H·Filed 1982·Granted Jan 10, 1984·28 cites·35 claims
- 0267US4300322AInsulationCLARK WILLIAM H·Filed 1980·Granted Nov 17, 1981·28 cites·5 claims
- 0362US4472835AReversible thermal vest garmentCLARK WILLIAM H·Filed 1982·Granted Sep 25, 1984·38 cites·5 claims
- 0458US4488725AFlip cube puzzleCLARK WILLIAM H·Filed 1983·Granted Dec 18, 1984·14 cites·12 claims
- 0548US4073166AMagnetic lock pickCLARK WILLIAM H·Filed 1977·Granted Feb 14, 1978·9 cites·10 claims
- 0635US4199636AInsulationCLARK WILLIAM H·Filed 1979·Granted Apr 22, 1980·6 cites·7 claims
- 0731US4046485AEarth and road roller with oppositely skewed tandem steering drumsCLARK WILLIAM H·Filed 1975·Granted Sep 6, 1977·9 cites·5 claims
- 0830US4039265ADitch-shaping roll and attachment for a road vehicleCLARK WILLIAM H·Filed 1975·Granted Aug 2, 1977·6 cites·6 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →