Assignee
CHROMIUM CORP
US·5 granted patents·146 citations·filing 1982–1987
Top patents by PatentIndex Score
5 records- 0186US4770206AMud pump valveCHROMIUM CORP·Filed 1987·Granted Sep 13, 1988·66 cites·4 claims
- 0271US4735129ASingle acting mud pump pistonCHROMIUM CORP·Filed 1983·Granted Apr 5, 1988·28 cites·2 claims
- 0370US4516785APiston with a controlled expansion piston anti-extrusion ringCHROMIUM CORP·Filed 1982·Granted May 14, 1985·28 cites·7 claims
- 0464US4706417AFinish for cylinder linersCHROMIUM CORP·Filed 1987·Granted Nov 17, 1987·24 cites·5 claims
- 0520US4862864AFinish for cylinder linersCHROMIUM CORP·Filed 1987·Granted Sep 5, 1989·0 cites·15 claims
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