Learn more

CHEMIPULP PROCESS INC

Overview
  • Total Patents
    38
About

CHEMIPULP PROCESS INC has a total of 38 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States, Canada and Finland. Its main competitors in its focus markets textiles and paper, environmental technology and machines are FRESK PER ALBERT, MAUTNER ISIDOR and WISE WILLIAM LLOYD.

Patent filings in countries

World map showing CHEMIPULP PROCESS INCs patent filings in countries
# Country Total Patents
#1 United States 28
#2 Canada 9
#3 Finland 1

Patent filings per year

Chart showing CHEMIPULP PROCESS INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dunbar Thomas L 16
#2 Merrill Albert D 10
#3 Kenety William H 3
#4 Stevens Jerry W 2
#5 Fulton George E 2
#6 Leonidas Dunbar Thomas 2
#7 Tetsuo Koda 2
#8 Smiley Lloyd D 1
#9 Schoenwerk Otto C 1
#10 Leonidas Dunear Thomas 1

Latest patents

Publication Filing date Title
US2823118A Method and apparatus for digesting fibrous material
US2634209A Strainer for digesters
US2225771A Method of digesting fibrous material
US2205374A Digesting process and apparatus
US2152267A Method and apparatus for digesting fibrous material
US2195378A Process of producing cellulosic pulp
US2165644A Method of absorbing and condensing digestion gases and vapors
US2175154A Method for treating cellulosic material
US2229886A Method of digesting fibrous materials
US2038925A Method and apparatus for the treatment of fibrous material
US2093267A Treatment of fibrous material
US1998875A Method and apparatus for packing wood chips or the like
US1998874A Method and apparatus for packing wood chips or the like
US2041597A Digesting process and apparatus
US1983793A Method and apparatus for the production of pulp
US1943489A Process and apparatus for digesting fibrous material
US1938802A Continuous process and apparatus for pulping fibrous materials
US1901706A Production of pulp
US1885918A Recovery of relief material
US1885561A Accumulator system