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O'BRIEN JOHN F

Overview
  • Total Patents
    19
About

O'BRIEN JOHN F has a total of 19 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United States and Canada. Its main competitors in its focus markets weapons, machines and transport are SAF T LOK CORP, MANTAS DIMITRIOS and ZIMMERMAN HARRY C.

Patent filings in countries

World map showing O'BRIEN JOHN Fs patent filings in countries
# Country Total Patents
#1 United States 15
#2 Canada 4

Patent filings per year

Chart showing O'BRIEN JOHN Fs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 O'Brien John F 19
#2 Santos Edward A 1
#3 Bowdle George F 1

Latest patents

Publication Filing date Title
US2010147204A1 Rudder roll stabilization by nonlinear dynamic compensation
US3161978A Torsion bar cartridge extractor
US2959106A Plural-barrel gun with drum and chambering mechanism
US2950652A Chambering mechanism for an automatic revolver type gun
US2938458A Obturating cartridge
US2971440A Rotating multiple barrel aircraft gun
US2965006A Twin-barrel gun with a drum and a multistation rammer
US2845007A Pivoted chamber weapon
US2849925A Recoil adapter for a gun
US2845006A Roller drum support for a revolver-type gun
US2820400A Cartridge link and feedwheel for a revolver-type gun
US2809565A Firing mechanism for a revolver-type gun
US2208682A Controlling mechanism for sprinkler systems
US844286A Garter.
CA29968A Telephone address index and advertizing device
US1081769A Sand cutting and riddling machine.
CA30836A Station indicator
CA27513A Boot and shoe
CA39033A Pocket whisk holder