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COVENTRY GAUGE & TOOL CO LTD

Overview
  • Total Patents
    147
About

COVENTRY GAUGE & TOOL CO LTD has a total of 147 patent applications. Its first patent ever was published in 1921. It filed its patents most often in United Kingdom, United States and Switzerland. Its main competitors in its focus markets machine tools, mechanical elements and measurement are TAICANG LEADLITE IND PRODUCTS CO LTD, LAIZHOU SANLI AUTO PARTS CO LTD and LUKE AND SPENCER LTD.

Patent filings in countries

World map showing COVENTRY GAUGE & TOOL CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 97
#2 United States 21
#3 Switzerland 12
#4 Germany 7
#5 France 7
#6 Austria 1
#7 Denmark 1
#8 Sweden 1

Patent filings per year

Chart showing COVENTRY GAUGE & TOOL CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Davidson John Bruce 11
#2 Palmer Raymond Leslie 11
#3 Ernest Wainwright John 8
#4 Jellis Morgan 6
#5 Morgan Jellis 5
#6 Limited Coventry Gauge Tool Co 4
#7 Darlington Norman 3
#8 Harley Stanley Jaffa 3
#9 Stanley Jaffa Harley 3
#10 Davidson J 2

Latest patents

Publication Filing date Title
US4075790A Screw thread tap grinding with automatic loading means
GB1547979A Screw thread tap grindling
US3994099A Screw thread tap grinding
GB1422120A Screw thread tap grinding
GB1422119A Screw thread tap grinding
GB1425446A Handwheel arrangement for machines or machine tools
US3650362A Torque limiting devices
GB1331601A Relative motion control means
GB1285022A Grinding wheel spindle arrangement
GB1219650A Grinding wheel dressing apparatus
DE1752787A1 Method and device for dressing grinding worms
US3568655A Apparatus for dressing a helically ribbed grinding wheel
US3568654A Grinding wheel dressing apparatus
GB1271653A Grinding wheel dressing apparatus
GB1271651A Grinding machine wheel head operating means
GB1271652A Improvements in or relating to grinding machines
GB1217159A Torque limiting device
DE1652015A1 Method and device for guiding an element, in particular a dressing or finishing tool
DE1652011A1 Grinding machine control
GB1154634A Improvements in or relating to Multi Disc Friction Clutches.