Assignee
PETREX INC
US·3 granted patents·18 citations·filing 1985–2002
Top patents by PatentIndex Score
3 records- 0155US6922956B2Floating coverPETREX INC·Filed 2002·Granted Aug 2, 2005·9 cites·23 claims
- 0253US6505445B2Floating coverPETREX INC·Filed 2001·Granted Jan 14, 2003·7 cites·18 claims
- 0322US4647335AApparatus for making cast in place top clamp bar gasketPETREX INC·Filed 1985·Granted Mar 3, 1987·2 cites·3 claims
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