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JOHN FREDERICK SIMMANCE

Overview
  • Total Patents
    11
About

JOHN FREDERICK SIMMANCE has a total of 11 patent applications. Its first patent ever was published in 1903. It filed its patents most often in United Kingdom and France. Its main competitors in its focus markets measurement are RHEOSENSE INC, STEINFURTH MESS SYSTEME GMBH and UNION APPBAU GES M B H.

Patent filings in countries

World map showing JOHN FREDERICK SIMMANCEs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 France 4

Patent filings per year

Chart showing JOHN FREDERICK SIMMANCEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Measurement

Top inventors

# Name Total Patents
#1 Simmance John Frederick 4
#2 Abady Jacques 3

Latest patents

Publication Filing date Title
GB322258A Improvements relating to pressure gauges and the like
GB279253A Improvements relating to gas calorimeters
GB223671A Improvements relating to indicating and recording instruments
GB210950A Improvements in gas calorimeters
GB205723A Improvements relating to indicating or recording apparatus for gas analysis
GB189665A Improvements relating to thermometric apparatus
GB187283A Improvements relating to pressure gauges and the like