Individual holder
COLVIN DAVID S
20 granted patents·702 citations·filing 1977–1999
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
20 records- 0198US4930378AWrench opening engagement surface configurationCOLVIN DAVID S·Filed 1989·Granted Jun 5, 1990·102 cites·34 claims
- 0296US4631988AReversible ratchet wrench including detent mechanismCOLVIN DAVID S·Filed 1984·Granted Dec 30, 1986·59 cites·22 claims
- 0395US4485700AReversible ratchet wrenchCOLVIN DAVID S·Filed 1983·Granted Dec 4, 1984·58 cites·17 claims
- 0494US4903554AReversible ratchet wrench with thin head constructionCOLVIN DAVID S·Filed 1989·Granted Feb 27, 1990·64 cites·13 claims
- 0592US4598616AWrench openingCOLVIN DAVID S·Filed 1985·Granted Jul 8, 1986·55 cites·17 claims
- 0688US5181773AVehicle occupant restraint belt buckle including illuminationCOLVIN DAVID S·Filed 1991·Granted Jan 26, 1993·58 cites·13 claims
- 0788US4663999ASocket including adjustable jawsCOLVIN DAVID S·Filed 1982·Granted May 12, 1987·43 cites·12 claims
- 0885US4151763ACombination adjustable open-end and box-end wrenchCOLVIN DAVID S·Filed 1977·Granted May 1, 1979·34 cites·8 claims
- 0979USD428004SElectronic deviceCOLVIN DAVID S·Filed 1999·Granted Jul 11, 2000·21 cites·1 claims
- 1079US4213355AAdjustable socketCOLVIN DAVID S·Filed 1979·Granted Jul 22, 1980·27 cites·14 claims
- 1177US4787275AAdjustable double-ended box wrenchCOLVIN DAVID S·Filed 1987·Granted Nov 29, 1988·30 cites·9 claims
- 1275US4608887AAdjustable socket including rotatable adjusterCOLVIN DAVID S·Filed 1985·Granted Sep 2, 1986·27 cites·19 claims
- 1375US4378714AAdjustable socket including apertured sleeveCOLVIN DAVID S·Filed 1981·Granted Apr 5, 1983·26 cites·3 claims
- 1472US4765211AWrench openingCOLVIN DAVID S·Filed 1986·Granted Aug 23, 1988·24 cites·9 claims
- 1569US4366733ASocket including adjustable jawsCOLVIN DAVID S·Filed 1981·Granted Jan 4, 1983·21 cites·13 claims
- 1662US4716797AScrewdriver with concave bladeCOLVIN DAVID S·Filed 1986·Granted Jan 5, 1988·17 cites·6 claims
- 1762US4325275AAdjustable open-end and box-end wrenchCOLVIN DAVID S·Filed 1980·Granted Apr 20, 1982·17 cites·16 claims
- 1848US4977800AScrewdriver blade constructionCOLVIN DAVID S·Filed 1990·Granted Dec 18, 1990·12 cites·14 claims
- 1946USD312760SAdjustable socketCOLVIN DAVID S·Filed 1986·Granted Dec 11, 1990·4 cites·1 claims
- 2039USD426197SElectronic deviceCOLVIN DAVID S·Filed 1999·Granted Jun 6, 2000·3 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →