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CHARLES WALLACE CHAPMAN

Overview
  • Total Patents
    13
About

CHARLES WALLACE CHAPMAN has a total of 13 patent applications. Its first patent ever was published in 1936. It filed its patents most often in United Kingdom and Ireland. Its main competitors in its focus markets engines, pumps and turbines, environmental technology and mechanical elements are CHAPMAN CHARLES WALLACE, ALBERT BAGNULO and WISHART JOHN DONALD.

Patent filings in countries

World map showing CHARLES WALLACE CHAPMANs patent filings in countries
# Country Total Patents
#1 United Kingdom 12
#2 Ireland 1

Patent filings per year

Chart showing CHARLES WALLACE CHAPMANs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB975547A Improvements in or relating to couplings for transmitting a drive between rotatable driving and driven members
IE17591L Compression ignition engines.
GB611535A Improvements in and relating to internal combustion engines of the fuel-injection compression-ignition type
GB611354A Improvements in and relating to internal combustion engines of the compression ignition type
GB609550A Improvements in and relating to friction couplings
GB608821A Improvements in and relating to internal combustion engines of the fuel-injection compression-ignition type
GB608729A Improvements in and relating to internal combustion engines of the fuel-injection compression-ignition type
GB608728A Improvements in and relating to internal combustion engines of the fuel-injection compression-ignition type
GB607570A Improvements in or relating to the supercharging of internal combustion engines
GB597544A Improvements to rotary compressors exhausters and motors
GB541400A Improvements in or relating to starting devices for internal-combustion engines
GB512823A Improvements in or relating to internal-combustion engines of the fuel-injection compression-ignition type
GB486208A Improvements in or relating to internal-combustion engines of the fuel injection compression ignition type