Inventor

PERKINS DONALD

US3 patents

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

WRIGHT ADAM D

2 patents

US8235103B2Aug 7, 2012

Well tools incorporating valves operable by low electrical power input

WRIGHT ADAM D27 citations91

US9593546B2Mar 14, 2017

Well tools incorporating valves operable by low electrical power input

WRIGHT ADAM D4 citations71

RINGGENBERG PAUL D

1 patent

US8997881B2Apr 7, 2015

Pressure bearing wall and support structure therefor

RINGGENBERG PAUL D0 citations48