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NAT COUPLING CO INC

Overview
  • Total Patents
    501
  • GoodIP Patent Rank
    26,321
  • Filing trend
    ⇩ 68.0%
About

NAT COUPLING CO INC has a total of 501 patent applications. It decreased the IP activity by 68.0%. Its first patent ever was published in 1959. It filed its patents most often in United Kingdom, Norway and United States. Its main competitors in its focus markets mechanical elements, machines and civil engineering are NATIONAL COUPLING COMPANY INC, HILTAP FITTINGS LTD and MARINE DIRECT CONSULTANTS LTD.

Patent filings per year

Chart showing NAT COUPLING CO INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Smith Iii Robert E 254
#2 Smith Robert E Iii 142
#3 Smith Robert E 43
#4 Robert E Smith Iii 22
#5 Watson Richard R 19
#6 Roy Chris 10
#7 Hollister Frank Harold 9
#8 Slot Maurice 9
#9 Stolle Scott 8
#10 Goggans Timothy 6

Latest patents

Publication Filing date Title
WO2021050479A1 Pressure-compensated, subsea chemical injection valve
US2020332621A1 Undersea Hydraulic Coupling with Multiple Pressure-Energized Metal Seals
US2020096114A1 Pilot-actuated spool valve having rod retainer
US2018216982A1 Autonomous chemical injection system for oil and gas wells
DE102017222699A1 Underwater valve with non-circular metal sliding seals
US2018163879A1 Subsea valve with non-circular sliding metal seals
DE102017218309A1 Underwater hydraulic coupling with metal bore lining
US2018106403A1 Subsea hydraulic coupling with metal bore liner
DE102017217604A1 Underwater hydraulic clutch with several pressure-excited metal seals
US2018094498A1 Undersea hydraulic coupling with multiple pressure-energized metal seals
US2017102085A1 Subsea BOP control system with dual-action check valve
NO20131494A1 Improved dummy undersea hydraulic clutch
GB201017529D0 Hydraulic coupling member with dual electrical bonding contacts
US2011248497A1 Pressure-Energized Probe Seal for Female Hydraulic Coupling Member
GB201016196D0 Method and apparatus for a piston actuated elastomer probe seal in a hydraulic coupling member
US2009255597A1 Probe seal having spring-energized sealing elements for female hydraulic coupling member
GB0904490D0 Fault-tolerant chemical injection system for oil and gas wells
GB0815747D0 Method for Autonomous Controls of a Chemical Injection System for Oil and Gas Wells
US2009308469A1 Hydraulic coupling with smooth bore poppet valve
US2009273181A1 Probe seal having pressure-energized sealing elements for female hydraulic coupling member