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DE CEW JUDSON A

Overview
  • Total Patents
    23
About

DE CEW JUDSON A has a total of 23 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States. Its main competitors in its focus markets textiles and paper, basic materials chemistry and chemical engineering are BERCEN INC, GUANGXI VOCATIONAL & TECHNICAL INST OF INDUSTRY and ERFURT MAX.

Patent filings in countries

World map showing DE CEW JUDSON As patent filings in countries
# Country Total Patents
#1 United States 23

Patent filings per year

Chart showing DE CEW JUDSON As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 De Cew Judson A 23

Latest patents

Publication Filing date Title
US2571219A Deaeration of paper making fibers
US2431657A Process of controlling lubricating emulsions
US2137239A Paper sizing
US2138840A Preparation of alum solution for paper sizing
US2041285A Paper sizing
US1965630A Waterproofing fibrous and other materials
US1993148A Method of defibering lignocellulose material
US1958470A Method of making free rosin emulsions
US1947900A Apparatus for refining paper stock
US1853849A Method and means for extracting air from paper stock
US1704728A Paper-making method and apparatus
US1663976A Method of sizing paper
US1585469A Method of sizing cellulose fibers
US1589947A Method of sizing cellulose fibers
US1578405A Process of hydration in paper making using friction
US1532579A Method of treating paper
US1444957A Beating engine
US1428148A Lubricating emulsion
US1347734A Method of making emulsions
US1330174A Method and apparatus for emulsifying oil solutions and the like