Inventor

ELLIS STEVEN C

US3 patents

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

VETCO GRAY INC ABB

1 patent

US5685369ANov 11, 1997

Metal seal well packer

VETCO GRAY INC ABB290 citations96

VETCO GRAY INC

1 patent

US7559366B2Jul 14, 2009

Flex-lock metal seal system for wellhead members

VETCO GRAY INC47 citations91

ELLIS STEVEN C

1 patent

US8146670B2Apr 3, 2012

Bi-directional annulus seal

ELLIS STEVEN C28 citations85