Individual holder
LANGSTON THOMAS J
US·3 granted patents·206 citations·filing 1990–1992
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0187US5237136AHydrostatic pressure responsive bypass safety switchLANGSTON THOMAS J·Filed 1991·Granted Aug 17, 1993·70 cites·31 claims
- 0275US5165489ASafety device to prevent premature firing of explosive well toolsLANGSTON THOMAS J·Filed 1992·Granted Nov 24, 1992·71 cites·16 claims
- 0373US4967048ASafety switch for explosive well toolsLANGSTON THOMAS J·Filed 1990·Granted Oct 30, 1990·65 cites·27 claims
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