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OTTO MICHALK

Overview
  • Total Patents
    56
About

OTTO MICHALK has a total of 56 patent applications. Its first patent ever was published in 1921. It filed its patents most often in Germany, United Kingdom and United States. Its main competitors in its focus markets textiles and paper, mechanical elements and measurement are SAECHSISCHE ARMATUREN FABRIK W, OSGOOD WALTER P and CAMPEX RES AND TRADING CORP.

Patent filings in countries

World map showing OTTO MICHALKs patent filings in countries
# Country Total Patents
#1 Germany 30
#2 United Kingdom 15
#3 United States 9
#4 Canada 2

Patent filings per year

Chart showing OTTO MICHALKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Otto Michalk 7
#2 Buttner Max 2
#3 Max Buttner 2
#4 Joachim Michalk Hans 1
#5 Elisabeth Michalk Martha Johan 1

Latest patents

Publication Filing date Title
GB483213A Improvements in or relating to machines for pounding up lasted shoes
US2167181A Hammering roller with balls
GB455000A Improvements in or relating to machines for pounding-up lasted shoes
GB463831A Improvements in sole gluing presses
US2156767A Shoemaking machine
GB464499A Improvements in and relating to machines for roughing the overlasted margins of shoe and like uppers
GB450122A Improvements in and relating to devices for roughing soles
GB413144A Improvements in non-return valves for lubricating conduits
GB413143A Improvements in non-return valves for lubricating conduits
GB402540A Improvements in or relating to twin sole-laying presses
US1939510A Twin sole-laying press
US1932323A Sole sticking press
GB381511A Improvements in and relating to shoe sticking presses
US1910474A Heating device for shoe sticking presses
GB359366A An improved heating device for shoe sticking presses
GB363907A Improvements in shoe clamping devices for pneumatic sole pressing moulds
US1780028A Forward and reverse gear
GB332501A Improvements in mechanical gearing for conveying rotary motion
US1795996A Gear
US1847591A Gear