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FACTORY MUTUAL RES CORP

Overview
  • Total Patents
    140
About

FACTORY MUTUAL RES CORP has a total of 140 patent applications. Its first patent ever was published in 1940. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, machines and mechanical elements are FYR FYTER CO, GLOBE AUTOMATIC SPRINKLER COMPANY and FOAMITE FIREFOAM COMPANY.

Patent filings per year

Chart showing FACTORY MUTUAL RES CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Livingston William L 38
#2 Livingston W 16
#3 Thompson Norman J 7
#4 De Ris John L 6
#5 Smith James B 5
#6 Hankins Joseph 4
#7 Yao Cheng 4
#8 Wilke Wayne H 4
#9 Kaufman John W 3
#10 Dundas Robert E 2

Latest patents

Publication Filing date Title
US6499357B2 Heat flux measurement pipe and method for determining sprinkler water delivery requirement
CA2371775A1 Wet sprinkler system for cold environments
US6367560B1 Wet sprinkler system for cold environments
US6085585A Sprinkler performance evaluation system
US5412995A Single-ply roof cover fatigue tester
US5511621A Local flooding fine water spray fire suppression system using recirculation principles
US4962831A Apparatus for controlling lubricating oil fires due to oil line failure
US4637735A Bench-scale material flammability test apparatus and process for measuring flammability
US4667106A Fire identification and discrimination method and apparatus
US4583369A System for detecting tubing rupture in feedwater heaters of steam power plant
US4692701A Method of testing steam turbine rotors to determine if they should be retired because of embrittlement
US4336825A Liquid level control system
US4222402A Dual overlapping fire protection systems and valve
US3971443A Discharge head having dual function plug retaining member
US3888313A Discharge head and fire protection system utilizing said head
US3893513A Discharge head and fire protection system utilizing said head
US3861473A Temperature responsive on-off fluid control device and a control assembly and fire protection system incorporating said device
US3872928A Fluid discharge assembly having a tiltable discharge portion and a discharge control system incorporating a plurality of said assemblies
US3903968A Mixing apparatus
US3871457A Fluid control device and a fire protection system incorporating said device