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JOSEF POLAK

Overview
  • Total Patents
    21
About

JOSEF POLAK has a total of 21 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 materials and metallurgy, audio-visual technology and transport are MANCINI FLAVIO, SMS CONCAST DIVISION OF SMS SC and ZAP SIB METALL KOM.

Patent filings in countries

World map showing JOSEF POLAKs patent filings in countries
# Country Total Patents
#1 Germany 10
#2 United Kingdom 8
#3 United States 3

Patent filings per year

Chart showing JOSEF POLAKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Josef Polak 3

Latest patents

Publication Filing date Title
US2214308A Means for controlling hydraulically operated working cylinders
US2228973A Die-casting machine
GB520788A Improvements in and relating to means for controlling hydraulically operated working cylinders
GB520419A Improvements in and relating to die-casting machines
GB489944A Improvements in or relating to pressure casting apparatus
GB462518A Improvements in or relating to hydraulic pressed casting machines
GB399709A Machine for casting metals
US1717254A Casting machine
GB305889A Improvements in talking machines
GB290936A Improvements in die-casting machines