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DOERRIES A G O

Overview
  • Total Patents
    43
About

DOERRIES A G O has a total of 43 patent applications. Its first patent ever was published in 1950. It filed its patents most often in Germany, Austria and Belgium. Its main competitors in its focus markets textiles and paper, machine tools and packaging and shipping are WALMSLEYS BURY LTD, SANDY HILL IRON & BRASS WORKS and SCHERB THOMAS.

Patent filings in countries

World map showing DOERRIES A G Os patent filings in countries
# Country Total Patents
#1 Germany 37
#2 Austria 3
#3 Belgium 2
#4 United Kingdom 1

Patent filings per year

Chart showing DOERRIES A G Os patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Schmitz Peter-Matthias 3
#2 Weber Peter 3
#3 Krah Erich 3
#4 Wintgen Dipl-Ing Karl 3
#5 Winter Rudolf 2
#6 Schmitt Edmund 2
#7 Graetz Fritz 2
#8 Kobertz Friedrich 2
#9 Boll Karl 2
#10 Lothmann Franz 2

Latest patents

Publication Filing date Title
DE1201168B Device for the intermittent feeding of pulp raw material into a digester
DE1180603B Device for vertical lathes
DE1194240B Device for the intermittent feeding of pulp into a digester
DE1194239B Method and device for shredding bamboo canes to produce cellulose
DE1181038B High pressure headbox for paper, cardboard or similar machines
DE1177466B Disc mill for pulping fibers for paper production
DE1163655B Method and device for the continuous cleaning of constantly rotating paper machine felts or the like.
DE1160722B Cone mills for the preparation of fiber materials for paper production
DE1146349B Device for cleaning the circulating felt of paper, cardboard or similar machines
DE1141525B Device for cleaning the felts of paper, cardboard or similar machines
DE1139005B Headbox for Fourdrinier paper machines
DE1093191B Cylindrical screen machine for the production of paper, cardboard, cellulose and similar webs
DE1145007B Device for separating magnetically influenceable components and specifically heavier impurities from a pulp suspension for paper production
DE1146350B Suction roll for paper, cardboard and cellulose dewatering machines or the like.
DE1114376B Device for tensioning the felt of paper, cardboard, pulp dewatering and similar machines
DE1096182B Device for the intermittent feeding of pulp raw material into a digester
DE1098347B Fourdrinier paper machine
DE1123551B Fourdrinier section for paper, cardboard or similar machines with adjustable scrapers under the dewatering zone of the screen and register rollers that can be switched on and off
DE1164221B Countercurrent cylinder for the production of paper, cardboard, cardboard or the like.
DE1178691B Device for transferring the paper web from the fourdrinier wire of a paper machine into the press section by means of compressed air