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OLIVER JOHN R

Overview
  • Total Patents
    12
About

OLIVER JOHN R has a total of 12 patent applications. Its first patent ever was published in 1918. It filed its patents most often in United States and United Kingdom. Its main competitors in its focus markets measurement, optics and weapons are SOTAX AG, INGOLD MESSTECHNIK AG and SPERRY RAIL INTERNATIONAL LTD.

Patent filings in countries

World map showing OLIVER JOHN Rs patent filings in countries
# Country Total Patents
#1 United States 7
#2 United Kingdom 5

Patent filings per year

Chart showing OLIVER JOHN Rs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Oliver John R 7
#2 Oliver John D 2

Latest patents

Publication Filing date Title
US2013019686A1 Method and apparatus for a railway wheel ultrasonic testing apparatus
US2012325005A1 Railway wheel ultrasonic testing apparatus
GB9105824D0 Oil well fire extinguishing system
GB9101978D0 In the water boat hull cleaning device
GB9025000D0 Brake shoe removal tool
GB9023947D0 A mobile variable height work bench
GB9022693D0 Vehicle oil sump level indicator and automatic oil filling device
US3027673A Low barrel revolver
US2871112A Method of etching for duplicating in a metallic piece a pattern formed by recessed areas in the surface of a master piece
US2722670A Radio jack
US2109949A Spectacles and the like
US1302700A Film-developing device.