Inventor
ROY CHRIS
US13 patents
⚠️ This page may combine multiple inventors who share the name “ROY CHRIS”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NAT COUPLING CO INC
9 patentsUS11614187B2Mar 28, 2023
Undersea hydraulic coupling with multiple pressure-energized metal seals
NAT COUPLING CO INC7 citations83
US10400541B2Sep 3, 2019
Undersea hydraulic coupling with multiple pressure-energized metal seals
NAT COUPLING CO INC13 citations82
US11512553B2Nov 29, 2022
Undersea hydraulic coupling with multiple pressure-energized metal seals
NAT COUPLING CO INC0 citations60
US12173576B2Dec 24, 2024
Regulator having check valve manifold for use in subsea control circuit
NAT COUPLING CO INC1 citations59
US11905782B2Feb 20, 2024
Regulator having check valve manifold for use in subsea control circuit
NAT COUPLING CO INC0 citations59
US11920704B2Mar 5, 2024
Undersea hydraulic coupling with multiple pressure-energized metal seals
NAT COUPLING CO INC0 citations50
US11454329B2Sep 27, 2022
Pressure-compensated, subsea chemical injection valve
NAT COUPLING CO INC0 citations47
US11085545B2Aug 10, 2021
Pilot-actuated spool valve having rod retainer
NAT COUPLING CO INC0 citations47
US10859420B2Dec 8, 2020
Autonomous chemical injection system for oil and gas wells
NAT COUPLING CO INC0 citations32