Assignee
PIPE LINE DEVELOPMENT CO
US·9 granted patents·317 citations·filing 1974–1995
Top patents by PatentIndex Score
9 records- 0194US3954288APipe fitting with self-testing seals and methodPIPE LINE DEVELOPMENT CO·Filed 1974·Granted May 4, 1976·107 cites·15 claims
- 0286US4535822AFitting installation devicePIPE LINE DEVELOPMENT CO·Filed 1983·Granted Aug 20, 1985·61 cites·18 claims
- 0371US4832379ACollet grip riser fittingPIPE LINE DEVELOPMENT CO·Filed 1987·Granted May 23, 1989·41 cites·10 claims
- 0469US4976372AHigh-pressure hydraulic gunPIPE LINE DEVELOPMENT CO·Filed 1989·Granted Dec 11, 1990·32 cites·12 claims
- 0563US4355656APipeline plug and bypassPIPE LINE DEVELOPMENT CO·Filed 1981·Granted Oct 26, 1982·26 cites·9 claims
- 0661US4370995AMethod and apparatus for prenotching a pipelinePIPE LINE DEVELOPMENT CO·Filed 1981·Granted Feb 1, 1983·17 cites·10 claims
- 0757US5553898AHot-tapping sleevePIPE LINE DEVELOPMENT CO·Filed 1995·Granted Sep 10, 1996·28 cites·1 claims
- 0821US4049234ASafety cockPIPE LINE DEVELOPMENT CO·Filed 1975·Granted Sep 20, 1977·1 cites·3 claims
- 0915US4725082ACouplingPIPE LINE DEVELOPMENT CO·Filed 1986·Granted Feb 16, 1988·4 cites·5 claims
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →