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H W KEARNS & CO LTD

Overview
  • Total Patents
    27
About

H W KEARNS & CO LTD has a total of 27 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United Kingdom, United States and Spain. Its main competitors in its focus markets machine tools, machines and mechanical elements are WEISSER SOEHNE J G, RAMO SA and FRORIEP GMBH MASCHF.

Patent filings in countries

World map showing H W KEARNS & CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 21
#2 United States 3
#3 Spain 2
#4 France 1

Patent filings per year

Chart showing H W KEARNS & CO LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Sparkes Curtis Albert 13
#2 Kearns Henry Ward Lionel 3
#3 Lionel Kearns Henry Ward 3
#4 Zadow Herbert Rudolf Julius 1
#5 C B E Henry Ward Lionel Kearns 1

Latest patents

Publication Filing date Title
GB1246967A Improvements in and relating to tool-holding mechanism for machine tools
GB1144631A Improvements in or relating to machine tools
GB1144632A Improvements in or relating to machine tools
GB1128612A Improvements in horizontal boring machine tools
GB1023096A Improvements in and relating to manually operable control devices
GB944689A Improvements in large revolving work tables of horizontal boring machines and other machine tools
GB966736A Improvements in revolving work tables of horizontal boring machines and other machine tools
GB966737A Improvements in revolving work tables of horizontal boring machines and other machine tools
GB1022801A An improved optical system for setting worktables of machine tools
GB920879A Improvements in horizontal boring machine tools
GB900717A Improvements in horizontal boring machine tools
GB845350A An improved longitudinal traversing drive for the travelling spindle of a horizontalboring machine tool
GB849239A Improvements relating to work tables of horizontal boring machines
GB830432A Improvements in large revolving work tables of horizontal boring machines and other machine tools
US2826928A Face plates of horizontal boring and facing machines
GB740835A Improvements in work tables of horizontal boring machines
GB738873A Improvements relating to face plates of horizontal boring and facing machines
GB695261A Improvements in grinding and milling machines
GB683200A Improvements relating to work tables of horizontal boring machines
US2564068A Optical projector indicator for horizontal boring machines