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WITCO GMBH

Overview
  • Total Patents
    199
About

WITCO GMBH has a total of 199 patent applications. Its first patent ever was published in 1977. It filed its patents most often in EPO (European Patent Office), United States and Japan. Its main competitors in its focus markets organic fine chemistry, macromolecular chemistry and polymers and basic materials chemistry are JINGZHOU JIANGHAN FINE CHEMICAL CO LTD, TEXAS ALKYLS INC and JIANGXI CHENGUANG NEW MAT CO LTD.

Patent filings in countries

World map showing WITCO GMBHs patent filings in countries

Patent filings per year

Chart showing WITCO GMBHs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Lisowsky Richard 29
#2 Lisowsky Richard Dr 16
#3 Guertzgen Stefan 15
#4 Rieger Rainer 12
#5 Weinberg Udo 12
#6 Kutschera Dirk 11
#7 Becker Ralf-Juergen 10
#8 Ventur Dirk 10
#9 Landsiedel Horst 10
#10 Schrader Rolf 9

Latest patents

Publication Filing date Title
DE19924101A1 Process for the preparation of water-soluble catalysts
EP0841380A1 Method of making polymeric binders and use thereof in antifouling paints
EP0841353A1 Process for the preparation of polymeric binders and their application as antifouling paint
FI963922A0 A process for preparing a metallocene catalyst system on an inert support
FI963923A0 Process for the preparation of metallocene catalyst systems on inert support material using the gas phase reactor
US5726332A Synthesis of novel organometallics and their use in olefin polymerization
EP0798315A1 Process for preparing highly active, stable metallocene catalyst systems, and catalyst compositions prepared according therewith
DE19606591C1 Stabilisation of alkyl:tin cpds. used for coating glass or ceramics
EP0763546A1 Process for producing metallocene catalysts on inert carriers using gas phase reactors
EP0763545A1 Process for the production of metallocene catalysts on inert supports
EP0760374A1 Unsymmetrically substituted metallocenes functionalized at only one cyclopentadiene moiety and their preparation
EP0753522A1 Process for the preparation of cyclopentadienyl-titanium-trialkoxy derivatives
EP0729967A1 Process for the preparation of transition metal complexes with 1,3-disubstituted cyclopentadienyl ligands
EP0718303A1 Process for the preparation of transition metal complexes with disubstituted cyclopentadiene ligands
DE4442149A1 Prepn. of elasticised mouldings or flat goods from epoxy cpds.,
DE4416894A1 Process for the synthesis of mono- and dimethylmetallocenes and their solutions especially for use in the polymerization of olefins
DE4409249A1 Process for the preparation of alkylaluminoxane on inert support materials
DE4406110A1 Bridged cyclopentadienyl magnesium compounds and process for their preparation and their use in the production of metallocenes
DE4406109A1 Process for the production of bridged stereorigid metallocenes
DE4402192A1 Process for the preparation of biscyclopentadienyl compounds