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PAPER CHEMISTRY INST

Overview
  • Total Patents
    158
About

PAPER CHEMISTRY INST has a total of 158 patent applications. Its first patent ever was published in 1934. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets textiles and paper, measurement and machines are SOLENIS TEKNOLODZHIZ KEJMAN L P, CONS PAPER BAHAMAS LTD and STRATHMORE PAPER COMPANY.

Patent filings in countries

World map showing PAPER CHEMISTRY INSTs patent filings in countries
# Country Total Patents
#1 United States 72
#2 Canada 64
#3 United Kingdom 15
#4 Germany 2
#5 France 2
#6 Finland 1
#7 Japan 1
#8 Sweden 1

Patent filings per year

Chart showing PAPER CHEMISTRY INSTs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rowland Ben W 20
#2 Johnson Charles E 15
#3 Wells Sidney D 14
#4 Den Akker Johannes A Van 10
#5 Otto Kress 10
#6 Kress Otto 9
#7 Graff John H 8
#8 Mckee Robert C 8
#9 Pearl Irwin A 8
#10 Akker Johannes A Van Den 8

Latest patents

Publication Filing date Title
US4841223A Method and apparatus for measuring fiber orientation anisotropy
US4619732A Method for drying pulping liquor to a burnable solid
US4291577A On line ultrasonic velocity gauge
US4097666A Solvent system for polysaccharides
US3776029A Apparatus and method for testing the runnability of corrugating medium
GB1119546A Improved method of treating fibrous material
US3154477A Coulometric titration
US3033708A Process of impregnating an assembled corrugated container board
US2987434A Method of making pulp
US2983724A Fungicide recovery from cabbage palmetto
US2987432A Treatment of spent sulfite liquor
US2987433A Process for making paper and the product thereof
GB765583A Paper splicing
US2811442A Sheets comprising filaments of fungi
US2802791A Treatment of spent sulfite liquor
US2650933A Higher alkyl 4-hydroxy-3-ethoxybenzoate and process for making same
US2675404A Therapeutic salts of vanillic acid esters
US2568349A Corrugated board and method of making same
US2686748A Paper splicing
GB673217A Improvements in or relating to container board and the process of making the same