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ALFRED GEORGE LANGDON

Overview
  • Total Patents
    25
About

ALFRED GEORGE LANGDON has a total of 25 patent applications. Its first patent ever was published in 1906. It filed its patents most often in United Kingdom and France. Its main competitors in its focus markets mechanical elements, engines, pumps and turbines and environmental technology are XUZHOU KEYUAN HYDRAULICS CO LTD, KOPP JEAN ERNST and KOPP JEAN E.

Patent filings in countries

World map showing ALFRED GEORGE LANGDONs patent filings in countries
# Country Total Patents
#1 United Kingdom 23
#2 France 2

Patent filings per year

Chart showing ALFRED GEORGE LANGDONs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Langdon Alfred George 2

Latest patents

Publication Filing date Title
GB728908A Improvements in or relating to reverse gears
GB692656A Improvements in or relating to rotary circulating pumps
GB677334A A silencing and cooling device for the exhaust gases of internal-combustion engines
GB674170A Improvements in or relating to a combined clutch, reverse and reduction gear
GB660818A Improvements in or relating to a combined clutch, reverse and reduction gear
GB654808A Improvements in or relating to rotary circulating pumps
GB641413A Improvements in or relating to clutch mechanism and reverse gear for internal combustion engines
GB624374A An improved combined clutch, reverse and reduction gear for internal combustion engines
GB630137A Improvements in or relating to a combined clutch and reverse gear for internal combustion engines
GB615251A Improvements in or relating to friction clutches
GB479597A Improvements in or relating to brake operating mechanism
GB457094A Improvements in or connected with clutch and reverse gears
GB452301A Improvements in and relating to winches and the like
GB436461A Improvements in or connected with exhaust silencers
GB404379A Improvements in or connected with power transmission gearing
GB385048A Improvements in or connected with pumps and like devices
GB374083A Improvements in or connected with clutch and reverse gears
GB345784A Improvements in or connected with clutches and clutch operated reverse gears
GB322035A Improvements in or connected with semi-rotary pumps
GB315549A Improvements in or connected with silencers for internal combustion engines