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RUETGERS VFT AG

Overview
  • Total Patents
    26
About

RUETGERS VFT AG has a total of 26 patent applications. Its first patent ever was published in 1994. It filed its patents most often in Germany, Japan and Poland. Its main competitors in its focus markets organic fine chemistry, chemical engineering and environmental technology are CHENGDA PHARMACEUTICALS CO LTD, Changzhou tianhua pharmaceutical co ltd and CHEMICAL TECHNOLOGY ACADEMY OF SHANDONG PROVINCE.

Patent filings per year

Chart showing RUETGERS VFT AGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Talbiersky Joerg 22
#2 Fuhrmann Edgar 21
#3 Brueggemann Wolfgang 12
#4 Janneck Heinz-Guenter 5
#5 Bergins Wolfgang 5
#6 Scholl Dietmar 3
#7 Bischof Rudolf 2
#8 Knips Ulrich 2
#9 Dialer Klaus 2
#10 Giertler Siegfried 2

Latest patents

Publication Filing date Title
DE10103208A1 Obtaining anthracene and carbazole by melt crystallization
DE19949319A1 Process for the preparation of aryl alkyl ethers
DE19850645C1 Single stage recovery of high purity isoquinoline, useful e.g. as starting material for drugs or dyes, by crystallizing isoquinoline fraction from coal-tar having restricted quinoline and quinaldine contents
DE19814555C1 Process for removing metal ions from cresol mixtures
DE19728835C1 Purification of quinaldine from coal tar fraction
DE4407202A1 Process for the separation of basic components of acidic aromatics from production wastewater, which are obtained in the processing of the carbol oil fraction resulting from tar oil distillation