Learn more

JOSEF GROAK

Overview
  • Total Patents
    15
About

JOSEF GROAK has a total of 15 patent applications. Its first patent ever was published in 1938. It filed its patents most often in United Kingdom and United States. Its main competitors in its focus markets machines, textiles and paper and optics are UNIMARK CORP, CHAPMAN DEREK D and HUEBNER COMPANY.

Patent filings in countries

World map showing JOSEF GROAKs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 United States 6

Patent filings per year

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

Top inventors

# Name Total Patents
#1 Josef Groak 6

Latest patents

Publication Filing date Title
GB1002036A Improvements in and relating to transfer systems
US3170044A Manufacture of magnetic records
GB956767A Improvements in and relating to transfer systems
GB683800A Improvements in and relating to screen or stencil printing machines
GB647831A A method and apparatus for printing by the action of heat on heat-sensitive materials
GB647821A A method and apparatus for printing by the action of heat on heat-sensitive materials
GB550332A Improvements in or relating to transfer copying materials
GB532120A Improvements in or relating to methods of attachment by adhesion for stationery sheets, webs, slips or cut-outs and the like
GB533569A Improvements in or relating to the application of adhesives to stationery
GB503695A Improvements relating to copying materials