Individual holder
MAIN HARVEY M
US·4 granted patents·230 citations·filing 1977–1988
Individually held — no corporate assignee on record.
Technology mixB25B4
Top patents by PatentIndex Score
4 records- 0191US4807500AReversing ratchet mechanism for toolsMAIN HARVEY M·Filed 1986·Granted Feb 28, 1989·72 cites·25 claims
- 0291US4791837ASpeed wrench and hand grip combinationMAIN HARVEY M·Filed 1986·Granted Dec 20, 1988·67 cites·16 claims
- 0388US4128025ABolt starting deviceMAIN HARVEY M·Filed 1977·Granted Dec 5, 1978·50 cites·6 claims
- 0482US5005448ASpeed wrench and hand grip combinationMAIN HARVEY M·Filed 1988·Granted Apr 9, 1991·41 cites·22 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →