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PERSTORP AKTIEBOLAG

Overview
  • Total Patents
    33
About

PERSTORP AKTIEBOLAG has a total of 33 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Germany, Austria and Canada. Its main competitors in its focus markets organic fine chemistry, macromolecular chemistry and polymers and textiles and paper are RESINOUS PROD & CHEMICAL CO, MASATAKA AMAGASA and HONSHU CHEMICAL IND.

Patent filings in countries

World map showing PERSTORP AKTIEBOLAGs patent filings in countries
# Country Total Patents
#1 Germany 15
#2 Austria 7
#3 Canada 5
#4 Switzerland 2
#5 Finland 2
#6 United Kingdom 1
#7 United States 1

Patent filings per year

Chart showing PERSTORP AKTIEBOLAGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lindkvist Eirik 5
#2 Kornfeldt Per 5
#3 Bergstrand Sten-Aake 4
#4 Flodin Per Gustaf Magnus 3
#5 Higashimura Toshinobu 2
#6 Flodin Per 2
#7 Bergstrand Sten-Ake 2
#8 Okamura Seizo 2
#9 Hayashi Koichiro 2
#10 Herz Kurt 2

Latest patents

Publication Filing date Title
DE1934127A1 Process for the production of hard fiber panels
DE1918274A1 Process for purifying trioxane
DE1745264A1 Process for making hard, tough resin products
DE1543821A1 Process for the continuous separation of trioxane
DE1253259B Process for the production of pure gaseous formaldehyde
GB1068408A Water supply system
US3379624A Process and equipment for the manufacture of pure polyalcohols
DE1569356A1 Process for the production of synthetic laminate and synthetic laminate produced by this method
CA784768A Process for continuous manufacturing formic acid and arrangement for performing the process
CA831094A Method for the solid phase copolymerization of trioxane
CA786831A Process for manufacturing polyalcohols and arrangements for performing the process
CA841002A Process for producing a catalyst for oxidation of methanol to formaldehyde
CA802944A Process for producing highly concentrated formaline