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LEONHARD KELLENBERGER

Overview
  • Total Patents
    25
About

LEONHARD KELLENBERGER has a total of 25 patent applications. Its first patent ever was published in 1920. It filed its patents most often in United Kingdom, United States and Germany. Its main competitors in its focus markets machine tools, machines and mechanical elements are TRI ORDINATE CORP, NAKAMURA TOME PREC INDUSTRY CO and HABIB ROBERT.

Patent filings in countries

World map showing LEONHARD KELLENBERGERs patent filings in countries
# Country Total Patents
#1 United Kingdom 16
#2 United States 6
#3 Germany 2
#4 Switzerland 1

Patent filings per year

Chart showing LEONHARD KELLENBERGERs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leonhard Kellenberger 7

Latest patents

Publication Filing date Title
GB487729A Improvements in or relating to infinitely variable wedge belt drives
US2170925A Belt drive
GB462707A A grinding spindle drive for universal grinding machines
GB461052A A measuring device for stationary and portable machines for boring engine and the like cylinders
GB401540A Improvements relating to planetary spindle internal grinding machines
GB384937A An improved combined honing and boring machine
GB391980A Improvements in and relating to machines for boring metal
GB356040A Improvements in metal milling machines
US1870054A Combined single-standard milling machine and counter-arm braces
GB349417A Tool-grinding machine
US1897055A Tool crinding machine
GB351852A Device for adjusting and centering the guides of milling, planing and like machine tools
GB339232A Metal milling machine
GB312176A Improvements in grinding machines
GB307265A Improvements in or relating to metal milling machines
US1932824A Milling machine with rigid frame
GB244288A Improvements in apparatus for the adjustment of the guides on sliding members of machine-tools, such as grinding machines, lathes, boring machines, planing machines and so forth
GB239767A Improvements in and relating to engaging and disengaging gear for use with cylinder grinding machines
GB236426A Improvements in means for mounting and centering cylinders, particularly automobile-cylinder blocks for their grinding
GB212473A Improved method and apparatus for grinding crank-shafts