P

Inventor

SPRINGETT FRANK B

US8 patents
⚠️ This page may combine multiple inventors who share the name “SPRINGETT FRANK B”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

NAT OILWELL VARCO LP

4 patents
US10337638B2Jul 2, 2019

Slow-shift SPM valve

NAT OILWELL VARCO LP7 citations80
US10000987B2Jun 19, 2018

Blowout preventer monitoring system and method of using same

NAT OILWELL VARCO LP13 citations79
US9869148B2Jan 16, 2018

Wellsite connector with floating seal member and method of using same

NAT OILWELL VARCO LP4 citations71
US9249637B2Feb 2, 2016

Dual gradient drilling system

NAT OILWELL VARCO LP3 citations60

VARCO INT

1 patent
US7520129B2Apr 21, 2009

Subsea pressure accumulator systems

VARCO INT62 citations96

GILMORE VALVE CO LTD

1 patent
US6779543B2Aug 24, 2004

BOP operating system with quick dump valve

GILMORE VALVE CO LTD26 citations90

GILMORE VALVE CO

1 patent
US6655405B2Dec 2, 2003

BOP operating system with quick dump valve

GILMORE VALVE CO34 citations90

NAT OILWELL VAREO L P

1 patent
US11536390B2Dec 27, 2022

Slow-shift SPM valve

NAT OILWELL VAREO L P0 citations59