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KARL MARTIN

Overview
  • Total Patents
    27
About

KARL MARTIN has a total of 27 patent applications. Its first patent ever was published in 1922. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets optics, machine tools and electrical machinery and energy are SHINYOPTICS CORP, FUJINON SANO CORP and TWENTSCHE KABELFAB BV.

Patent filings in countries

World map showing KARL MARTINs patent filings in countries

Patent filings per year

Chart showing KARL MARTINs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Karl Martin 9
#2 Martin Karl 5
#3 Ernst Ditts 1
#4 Friedrich Mockel 1
#5 Wilhelm Kaiser 1
#6 Paul Tietze 1

Latest patents

Publication Filing date Title
SU93387A1 Device for blocking the comb conveyor and lifting the fender plates on cotton machines
GB524198A A pressure-casting furnace, especially for bearing metals
GB524124A Thin linings of bearing metals
US2297232A Magnifying device
US2127878A Magnetic compass
US1915195A Method of and machine for grinding in valves and cocks
US1903593A Eyeglasses
GB297627A Improvements in multi-focal lenses
GB293646A Tinplate box with lid to be opened by pressure
US1706177A Lens
GB282282A Improvements in lenses for signalling lamps, searchlights and like purposes
US1752680A Optical means for producing color cinematographic pictures
GB276591A Improvements in apparatus for coloured kinematographic photography
US1678153A Price-indicating balance
GB266971A Improvements in price indicating balances
US1728426A Color cinematography
GB252639A Improvements in and relating to colour kinematography