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CHARLES EDWARD FRANCIS AHLM

Overview
  • Total Patents
    12
About

CHARLES EDWARD FRANCIS AHLM has a total of 12 patent applications. Its first patent ever was published in 1922. It filed its patents most often in United Kingdom and Germany. Its main competitors in its focus markets mechanical elements and electrical machinery and energy are SHAANXI GUOLI INFORMATION TECHNOLOGY CO LTD, SHENZHEN QICHILONG TECH CO LTD and QIJIANG BENLI GEAR CO LTD.

Patent filings in countries

World map showing CHARLES EDWARD FRANCIS AHLMs patent filings in countries
# Country Total Patents
#1 United Kingdom 7
#2 Germany 5

Patent filings per year

Chart showing CHARLES EDWARD FRANCIS AHLMs patent filings per year from 1900 to 2020

Latest patents

Publication Filing date Title
GB277574A Improvements in or relating to variable speed mechanism
GB263319A Improvements in or relating to transmission gearing
GB263320A Improvements in or relating to transmission gearing
GB265881A Improvements in and relating to shifting mechanism for gears, dental clutches and the like
GB261123A Improvements in or relating to transmission gearing
GB206276A Improvements in controlling system for electro-magnetic transmission mechanism
GB201063A Improvements in electro-magnetic transmission mechanisms