Assignee
SUMMERS DON D
4 granted patents·119 citations·filing 1977–1985
Top patents by PatentIndex Score
4 records- 0177US4636308AMethod and apparatus for reclaiming drilling fluids from undesirable solids in a drilling operationSUMMERS DON D·Filed 1985·Granted Jan 13, 1987·66 cites·13 claims
- 0269US4234413AMethod and apparatus for self-cleaning drilling mud separation systemSUMMERS DON D·Filed 1979·Granted Nov 18, 1980·27 cites·3 claims
- 0365US4152253AMethod and apparatus for a self-cleaning drilling mud separation systemSUMMERS DON D·Filed 1977·Granted May 1, 1979·24 cites·4 claims
- 0434USD264974SApparatus for cleaning drilling mud and fluidsSUMMERS DON D·Filed 1980·Granted Jun 15, 1982·2 cites·1 claims
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →