Individual holder
MARTIN CHARLES F
8 granted patents·238 citations·filing 1971–1985
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
8 records- 0185US4516880AUnderwater trenching apparatusMARTIN CHARLES F·Filed 1982·Granted May 14, 1985·36 cites·20 claims
- 0284US4022028ASubmarine pipe trenching apparatusMARTIN CHARLES F·Filed 1971·Granted May 10, 1977·36 cites·38 claims
- 0381US4195865AApparatus for connecting tubular membersMARTIN CHARLES F·Filed 1976·Granted Apr 1, 1980·45 cites·33 claims
- 0475US4676531AApparatus for clamping and sealing the outer surface of a pipe and fittings for pipe connectionMARTIN CHARLES F·Filed 1985·Granted Jun 30, 1987·42 cites·23 claims
- 0570US4371198AApparatus for connecting tubular membersMARTIN CHARLES F·Filed 1980·Granted Feb 1, 1983·33 cites·28 claims
- 0654US4411456AApparatus, methods, and joints for connecting tubular membersMARTIN CHARLES F·Filed 1980·Granted Oct 25, 1983·20 cites·25 claims
- 0753US4183555AMethods and joints for connecting tubular membersMARTIN CHARLES F·Filed 1976·Granted Jan 15, 1980·17 cites·62 claims
- 0848US4291559ASheave making apparatus and methodMARTIN CHARLES F·Filed 1979·Granted Sep 29, 1981·9 cites·34 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →