Inventor
COTTON CRAIG
US14 patents
⚠️ This page may combine multiple inventors who share the name “COTTON CRAIG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PATRIOT RES CENTER LLC
9 patentsUS11215038B2Jan 4, 2022
Rotating hanger running tool
PATRIOT RES CENTER LLC4 citations70
US11867356B2Jan 9, 2024
Rotary multi-port greasing valve
PATRIOT RES CENTER LLC0 citations59
US11732540B2Aug 22, 2023
Isolation tool
PATRIOT RES CENTER LLC0 citations59
US12031406B2Jul 9, 2024
Hydraulic accumulator system
PATRIOT RES CENTER LLC0 citations58
US11828413B2Nov 28, 2023
Grease pressure relief system
PATRIOT RES CENTER LLC0 citations58
US11079024B1Aug 3, 2021
Valve cavity isolation seat
PATRIOT RES CENTER LLC1 citations51
US11598418B2Mar 7, 2023
Metal to metal vee seal
PATRIOT RES CENTER LLC0 citations49
US11441372B2Sep 13, 2022
Inward biased tubing hanger
PATRIOT RES CENTER LLC0 citations49
US12571276B1Mar 10, 2026
Casing mandrel hangers
PATRIOT RES CENTER LLC0 citations42
CAMERON INT CORP
5 patentsUS11661807B1May 30, 2023
Rotating hanger assemblies and methods
CAMERON INT CORP4 citations68
US11293250B2Apr 5, 2022
Method and apparatus for fracking and producing a well
CAMERON INT CORP0 citations57
US11414948B2Aug 16, 2022
Flange system
CAMERON INT CORP0 citations56
US10961799B2Mar 30, 2021
Flange system
CAMERON INT CORP1 citations56
US12228004B2Feb 18, 2025
Wellhead assembly and test sealing architecture
CAMERON INT CORP0 citations47