Inventor

WINSLOW DONALD

US4 patents

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

HALLIBURTON ENERGY SERV INC

2 patents

US7533728B2May 19, 2009

Ball operated back pressure valve

HALLIBURTON ENERGY SERV INC20 citations89

US7597146B2Oct 6, 2009

Methods and apparatus for completion of well bores

HALLIBURTON ENERGY SERV INC10 citations80

MAKOWIECKI GARY

1 patent

US8215404B2Jul 10, 2012

Stage cementing tool

MAKOWIECKI GARY33 citations87

BAKER HUGHES INC

1 patent

US6106145AAug 22, 2000

Adjustable homogenizer device

BAKER HUGHES INC11 citations70