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PRUCE HENRY CLARKE

Overview
  • Total Patents
    14
About

PRUCE HENRY CLARKE has a total of 14 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets control, machines and civil engineering are AMERICAN LOCKER CO, ROWSE FRANK J and AMERICAN LOCKER SECURITY SYST.

Patent filings in countries

World map showing PRUCE HENRY CLARKEs patent filings in countries
# Country Total Patents
#1 United Kingdom 13
#2 United States 1

Patent filings per year

Chart showing PRUCE HENRY CLARKEs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Pruce Henry Clarke 14

Latest patents

Publication Filing date Title
GB191103161A Improvements in Coin-freed Locks.
GB190906199A Improvements in Coin-freed Locks.
GB190811188A Improvements in Coin-freed Locks.
GB190719439A Improvements in Coin-freed Locks for the Doors of Lavatories, W.Cs, and the like, and for analogous uses.
GB190625709A Improvements in or relating to, Hat-and-coat or Clothes Hooks
GB190520735A Improvements in Coin-freed Locks for the Doors of Lavatories, W.Cs, and the like, and for Analogous uses.
GB190420056A Improvements in Telescopic Casement and similar Stays
GB190322711A Improvements in Clamping or Gripping Attachments for use in connection with Casement and Window Stays, Fanlight and other Regulator-rods, and other Sliding or Adjustable Articles
US686533A Knob attachment.
GB190109317A Improvements in Means or Apparatus to be used in connection with the Opening and Closing of Fanlights, Windows, Shutters, Ventilators and the like.
GB190020496A Improvements in Means for Securing Knobs, Handles, Turns and the like to Spindles.
GB190007698A Improvements relating to Number, Name and like Plates for Hat and Coat Hooks, Doors and Analogous Purposes.
GB189914506A Improvements in or relating to Panic Bolts.
GB189901059A Improvements in Means for Opening, Closing and Fixing Fanlights, Windows, Shutters, Ventilators, Doors, and other analogous Articles.