P

Inventor

NOTT DARCY

CA6 patents
⚠️ This page may combine multiple inventors who share the name “NOTT DARCY”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

WEATHERFORD LAMB

3 patents
US7836973B2Nov 23, 2010

Annulus pressure control drilling systems and methods

WEATHERFORD LAMB107 citations95
US7066247B2Jun 27, 2006

Methods and apparatus for drilling with a multiphase pump

WEATHERFORD LAMB16 citations90
US6966367B2Nov 22, 2005

Methods and apparatus for drilling with a multiphase pump

WEATHERFORD LAMB37 citations90

CANRIG DRILLING TECH LTD

2 patents
US10000981B2Jun 19, 2018

Back pressure control system

CANRIG DRILLING TECH LTD2 citations60
US9194196B2Nov 24, 2015

Dual purpose mud-gas separator and methods

CANRIG DRILLING TECH LTD1 citations49

BELCHER GARY

1 patent
US8122975B2Feb 28, 2012

Annulus pressure control drilling systems and methods

BELCHER GARY45 citations92