Individual holder
CARNAHAN DAVID A
US·3 granted patents·38 citations·filing 1974–1987
Individually held — no corporate assignee on record.
Top patents by PatentIndex Score
3 records- 0152US4133342AMethod of replacing seals in a well ram type blow out preventerCARNAHAN DAVID A·Filed 1976·Granted Jan 9, 1979·13 cites·17 claims
- 0250US4825948ARemotely variable multiple bore ram system and methodCARNAHAN DAVID A·Filed 1987·Granted May 2, 1989·15 cites·3 claims
- 0347US4003430AApparatus for the replacement of seals in a well ram type blow out preventerCARNAHAN DAVID A·Filed 1974·Granted Jan 18, 1977·10 cites·10 claims
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