Inventor

HARGREAVES STEVEN

CA4 patents

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

DAGENAIS DAN

2 patents

US8453541B2Jun 4, 2013

Reduced weight power tong for turning pipe

DAGENAIS DAN13 citations78

US8267448B2Sep 18, 2012

Cam arm actuated backup tong

DAGENAIS DAN5 citations56

GERWING MURRAY

2 patents

US8479614B2Jul 9, 2013

Internally retained jaw roller pin

GERWING MURRAY0 citations36

US8234957B2Aug 7, 2012

Internally retained jaw roller pin

GERWING MURRAY0 citations36