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ZELLSTOFF UND PAPIERFABRIKATIO

Overview
  • Total Patents
    17
About

ZELLSTOFF UND PAPIERFABRIKATIO has a total of 17 patent applications. Its first patent ever was published in 1919. It filed its patents most often in Germany and Denmark. Its main competitors in its focus markets materials and metallurgy, textiles and paper and measurement are A & W OVERSEAS DEV LTD, VAINS ANTOINE REGNOUF DE and GRANIT SA.

Patent filings in countries

World map showing ZELLSTOFF UND PAPIERFABRIKATIOs patent filings in countries
# Country Total Patents
#1 Germany 16
#2 Denmark 1

Patent filings per year

Chart showing ZELLSTOFF UND PAPIERFABRIKATIOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Steinschneider Dipl-Ing Max 4
#2 Ziroff Dr Wilhelm 2
#3 Sleinschneider Dipl-Ing Max 1
#4 Schulze Georg 1
#5 Ziroff Dr-Ing Wilhelm 1
#6 Pauly Herman 1
#7 Kraft Eduard 1

Latest patents

Publication Filing date Title
DE615523C Process for cleaning alkaline solutions
DE671994C Process for the saccharification of cellulose-containing substances
DE577607C Process for removing foreign metals from alkali
DE637909C Process for the production of higher alcohols from ethyl alcohol
DE569901C Device for taking material samples from digesters, in particular pulp digesters
DE574148C Headbox on paper machines with a device for swirling the stock water
DE565305C Process for preparing sulphite waste liquor for fermentation purposes
DE511662C Device for cleaning the grate members of a traveling grate
DE440337C Production of sulphurous acid for sulphite liquor production
DE427540C Utilization of sulphite waste liquor
DE464333C Apparatus for making films
DE405058C Process for the recovery of the amount of liquid and gas escaping from pulp digesters
DE412697C Processing of sulphite waste liquor
DE405059C Process for obtaining a cellulose material that is particularly suitable for use in the chemical industry and for the production of special papers
DE336535C Process for the production of the purest cellulose with a cotton or wool-like texture from vegetables using acidic sulphite liquors