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PRECISION GRINDING LTD

Overview
  • Total Patents
    17
About

PRECISION GRINDING LTD has a total of 17 patent applications. Its first patent ever was published in 1951. It filed its patents most often in Switzerland, United Kingdom and Germany. Its main competitors in its focus markets optics, measurement and machine tools are NISSIN KOKI KK, YOKOGAWA BRIDGE WORKS and HENSOLDT & SOEHNE OPTIK.

Patent filings in countries

World map showing PRECISION GRINDING LTDs patent filings in countries
# Country Total Patents
#1 Switzerland 4
#2 United Kingdom 4
#3 Germany 3
#4 France 2
#5 Italy 2
#6 United States 2

Patent filings per year

Chart showing PRECISION GRINDING LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Ferdinandi Frank 5
#2 Andrews Stanley William 4
#3 Fisher John Horace 3
#4 Grinding Limited Precision 1
#5 Fisher John H 1
#6 Maurice James Kent 1
#7 Fischer John Horace 1
#8 Andrews Stanley W 1
#9 Ronald Frank Holmes 1
#10 James Henry Dwyer 1

Latest patents

Publication Filing date Title
US4525041A Arrangement for use in positioning an optical image
GB8304607D0 An arrangement for use in positioning an optical image
GB8304608D0 Apparatus for use in monitoring a plurality of variable parameters
GB1345334A Workpiece forming attachment
GB1314454A Pattern-controlled machine tools