Inventor

MARSHALL GREGORY S

US2 patents

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

BAKER HUGHES INC

1 patent

US6408946B1Jun 25, 2002

Multi-use tubing disconnect

BAKER HUGHES INC144 citations93

HALLIBURTON ENERGY SERV INC

1 patent

US7926581B2Apr 19, 2011

Well tool having enhanced packing element assembly

HALLIBURTON ENERGY SERV INC4 citations60