Inventor

COGNEVICH MICHAEL L

US6 patents

⚠️ This page may combine multiple inventors who share the name “COGNEVICH MICHAEL L”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

FLOW SAFE INC

2 patents

US5842501ADec 1, 1998

Pilot operated safety relief valve

FLOW SAFE INC57 citations91

US5738333AApr 14, 1998

Relief valve

FLOW SAFE INC40 citations86

BAKER OIL TOOLS INC

1 patent

US4415036ANov 15, 1983

Pressure equalizing flapper type safety valve for subterranean wells

BAKER OIL TOOLS INC84 citations95

BAKER HUGHES INC

1 patent

US4960173AOct 2, 1990

Releasable well tool stabilizer

BAKER HUGHES INC83 citations92

WESTINGHOUSE ELECTRIC CORP

1 patent

US4433828AFeb 28, 1984

Reactor vessel stud closure system

WESTINGHOUSE ELECTRIC CORP15 citations71

DOVER RESOURCES INC

1 patent

US5141416AAug 25, 1992

Plunger for a downhole reciprocating oil well pump and the method of manufacture thereof

DOVER RESOURCES INC19 citations65