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BARNES JOHN WILLIAM

Overview
  • Total Patents
    14
About

BARNES JOHN WILLIAM has a total of 14 patent applications. Its first patent ever was published in 1911. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets machine tools, machines and mechanical elements are SPIREX TOOLS AB, HIESTAND KARL and GUGLIELMETTI PIETRO.

Patent filings in countries

World map showing BARNES JOHN WILLIAMs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 United States 4
#3 Canada 1

Patent filings per year

Chart showing BARNES JOHN WILLIAMs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Barnes John William 13
#2 Cooper Tom 1

Latest patents

Publication Filing date Title
GB8603945D0 Monitoring tyre inflation
GB130527A Improvements in Twist Drills.
GB130359A Improvements in and relating to Grinding Apparatus specially applicable for Grinding the Interior of the A Tubes of Guns.
US1225745A Boring-bar for use in the manufacture of ammunition-shells or the like.
US1175500A Clutch mechanism for the driving-gear of lathes, boring-machines, milling-machines, and the like.
GB191506177A Improvements in Boring Bars for use in the Manufacture of Ammunition Shells or the like.
GB191418949A Improvements in Clutch Mechanisms for the Driving Gear of Lathes, Boring Machines, Milling Machines, and the like.
US1151079A Clutch mechanism.
GB191304748A Improvements in Clutch Mechanisms, applicable for Variable Speed Gearing.
GB191203817A Improvements relating to Chucks for Boring Machines, Lathes, or the like.
GB191122498A Improvements in Drills or the like and Sockets therefor.
CA138298A Chuck
US1112348A Chuck for boring-machines, lathes, or the like.
GB191107262A Improvements relating to Chucks for Boring Machines, Lathes or the like.