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BEROL KEMI AB

Overview
  • Total Patents
    456
About

BEROL KEMI AB has a total of 456 patent applications. Its first patent ever was published in 1971. It filed its patents most often in Sweden, United States and Finland. Its main competitors in its focus markets chemical engineering, basic materials chemistry and machines are BEROL NOBEL AB, WITCO CHEMICAL CORP and CHINA HAOHUA DALIAN RES & DESIGN INSTITUTE OF CHEMICAL INDUSTRY CO LTD.

Patent filings per year

Chart showing BEROL KEMI ABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Hellsten Karl Martin Edvin 53
#2 Koell Juhan 26
#3 Hellsten Martin 22
#4 Hellsten K M E 18
#5 Klingberg Anders William 18
#6 Hellsten Karl M E 16
#7 Karlsson Birgit Tora Gunvor 14
#8 Allenmark Stig 11
#9 Edebo Lars 11
#10 Lindstedt Magnus 11

Latest patents

Publication Filing date Title
US5204060A Method for disinfection
US5080902A Article and a prophylactic composition containing a microbicide
US4830739A Process and composition for the froth flotation beneficiation of iron minerals from iron ores
FI882809A0 Profylaktiskt medel foer kontroll av veneriska sjukdomar.
US4876122A Package capable of preventing foam formation, method of manufacturing such a package, and antifoaming agent
JPH01183599A Improvement in retention and purification of cellulose fiber suspension and waste water in paper, pulp and paper board industry
GB8730026D0 Ether phosphonate surfactants having branched hydrophobic tails and their use in an enhanced oil recovery process
US4795578A Process and composition for the froth flotation beneficiation of iron minerals from iron ores
FI875123A0 A way to improve the retention or treatment of pulp fiber suspensions or wastewater in the paper, pulp or board industry
US4863890A Process for preparing a ruthenium-promoted, halogen-containing nickel and/or cobalt catalyst and a catalyst prepared by the process
CA1273927A Amphoteric compound and use thereof
FI870700A Foerfarande foer framstaellning av aminerade produkter med anvaendning av en nickel- och / eller koboltkatalysator.
EP0237092A1 Transesterification process
FI865312A0 Use of an ester compound as a temporary microbicide
SE8603088D0 PROCEDURES FOR PREPARING A RUTENIUM DUPPED NICKEL AND / OR COBULATE CATALYST ON A POROES METAL OXIDES BASIS AND USING THE CATALYST IN A HYDRADING AND / OR DEHYDRATION REACTION
DE3612087A1 AQUEOUS SLURRY OF PLASTER OR CHALK AND THEIR USE FOR COATING PAPER
GB8531297D0 Surface active compound, a microemulsion containing said compound and the use thereof
GB8526550D0 Acidizing method using microemulsion
GB8526363D0 Method for improving the processibility of cellulosic spinning solutions
EP0180561A1 A method for mechanically working cobalt-containing metal, and a concentrate suitable, after dilution with water, for use in said method