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STEWART & STEVENSON INC JIM

Overview
  • Total Patents
    30
About

STEWART & STEVENSON INC JIM has a total of 30 patent applications. Its first patent ever was published in 1965. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets civil engineering, electrical machinery and energy and mechanical elements are VETCO OFFSHORE IND INC, GULFSTREAM SERVICES INC and HYDRIL CO.

Patent filings in countries

World map showing STEWART & STEVENSON INC JIMs patent filings in countries

Patent filings per year

Chart showing STEWART & STEVENSON INC JIMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Koomey Paul C 3
#2 Devries D 2
#3 De Vries D 2
#4 Baugh H A 2
#5 Devries Douwe 2
#6 Baugh Hollis A 2
#7 Baugh H 2
#8 Lemoine J L 2
#9 Calhoun Charles W 1
#10 Streb Alan J 1

Latest patents

Publication Filing date Title
US3957079A Valve assembly for a subsea well control system
CA992459A Underwater wellhead connector
CA992458A Underwater connector for wellheads
NL7405736A Locking valve system - for an underwater oil well blow-out protective assembly
GB1505496A Hydraulic control system for controlling hydraulically actuated underwater devices
GB1430705A Blowout preventer
NL7404447A Underwater wellhead flow connector - with stinger cooperable with receptacles on riser and stack plates
GB1430743A Underwater connector
DE2413058A1 Underwater wellhead flow connector - with stinger cooperable with receptacles on riser and stack plates
GB1436210A Underwater electrical connector
US3839608A Apparatus for making and breaking an electrical underwater connection between releasable underwater members
US3843923A Well pipe joint locator using a ring magnet and two sets of hall detectors surrounding the pipe
GB1443713A Gas detector and mud measurement
US3827668A Locking system for a blowout preventer
US3840071A Underwater connector for wellheads
US3820600A Underwater wellhead connector
US3677520A Safety apparatus for drilling rig
US3486556A Underwater connecting apparatus
US3405387A Acoustical underwater control apparatus