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JOHN R DITMARS

Overview
  • Total Patents
    15
About

JOHN R DITMARS has a total of 15 patent applications. Its first patent ever was published in 1931. It filed its patents most often in United States and Canada. Its main competitors in its focus markets textiles and paper, machines and basic materials chemistry are ARJO WIGGINS DESSIN ET PAPIERS, ARJOWIGGINS RIVES and GEORGIA BONDED FIBERS INC.

Patent filings in countries

World map showing JOHN R DITMARSs patent filings in countries
# Country Total Patents
#1 United States 10
#2 Canada 5

Patent filings per year

Chart showing JOHN R DITMARSs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Grupe William F 6
#2 Boyce Charles M 5
#3 Der Meulen Peter A Van 4

Latest patents

Publication Filing date Title
US2428113A Machine for coating paper
US2304819A Art of coating paper
US2304818A Art of coating paper
US2211992A Coating composition
US2152829A Film-forming composition
US2069787A Thin flexible film composition
US2069786A Coated paper
US2003065A Composition for coating sheets, fibrous stocks, and the like
US1978406A Treating surfaces of fibrous materials
US1978405A Apparatus for producing and finishing prints
CA308937A Method of finishing prints
CA416964A Paper coating method
CA422530A Paper coating method
CA410572A Paper coating method
CA308938A Method of finishing prints