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HYDRA RIG INC

Overview
  • Total Patents
    48
About

HYDRA RIG INC has a total of 48 patent applications. Its first patent ever was published in 1977. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, mechanical elements and packaging and shipping are TEXAS GAS TRANSPORT, COMPRESSED ENERGY TECHNOLOGY AS and INOCEAN AS.

Patent filings per year

Chart showing HYDRA RIG INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Goode John E 19
#2 Elliston Thomas L 14
#3 Cain Troy D 4
#4 Lance Raymond E 4
#5 Elliston Thomas Leon 4
#6 Michael D Hoyle 3
#7 John Edward Goode 3
#8 Steffenhagen Timothy Scott 3
#9 Goode John Edward 3
#10 Graves Randall Scott 3

Latest patents

Publication Filing date Title
US6216780B1 Coiled tubing injector with improved traction
GB9925440D0 Method and apparatus for heave compensated drilling with coiled tubing
US6173769B1 Universal carrier for grippers in a coiled tubing injector
CA2236358A1 Universal carrier for grippers in a coiled tubing injector
CA2236234A1 Coiled tubing injector
US5315831A Liquid natural gas and compressed natural gas total fueling system
US5360139A Liquified natural gas fueling facility
US5301723A Apparatus and method of preventing ice accumulation on coupling valves for cryogenic fluids
US5309990A Coiled tubing injector
US4738115A Liquified gas pumping and vaporization system
US4585061A Apparatus for inserting and withdrawing coiled tubing with respect to a well
CA1205740A Marine riser tensioner
US4478561A Hydraulic intensifier
US4494415A Liquid nitrogen pump
US4436177A Truck operator's cab with equipment control station
US4390315A Fire fighting boom assembly for service vessel
US4257456A Pressure compensated spool valve
US4290495A Portable workover rig with extendable mast substructure, platform mounted drawworks and adjustable wellhead anchor
US4324194A Stabilized hoist rig for deep ocean mining vessel
US4417846A Traveling block elevator latch assembly