Assignee
CHEEK ALTON E
5 granted patents·158 citations·filing 1976–1985
Top patents by PatentIndex Score
5 records- 0179US4612987ADirectional drilling azimuth control systemCHEEK ALTON E·Filed 1985·Granted Sep 23, 1986·68 cites·19 claims
- 0271US4372622ARecirculating bearing antifriction system for well stringsCHEEK ALTON E·Filed 1980·Granted Feb 8, 1983·42 cites·4 claims
- 0364US4196781ATelescoping jointCHEEK ALTON E·Filed 1978·Granted Apr 8, 1980·27 cites·13 claims
- 0442US4105082AJarring toolCHEEK ALTON E·Filed 1976·Granted Aug 8, 1978·12 cites·15 claims
- 0535US4515403AOvershotCHEEK ALTON E·Filed 1982·Granted May 7, 1985·9 cites·12 claims
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