Rainer Tresch has been granted 10 US patents while listed as an inventor at Basf Se . The first was granted in 1992 and the most recent in August 2005. Rainer Tresch ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list Rainer Tresch in Frankenthal (Pfalz), DE.
Patents per Year Patents granted per year, 1992 to 2005 Bar chart with a peak of 3 patents in 2004. peak 3 1992: 1 patents 1992 2000: 2 patents 2000 2002: 1 patents 2002 2004: 3 patents 2004 2005: 3 patents 2005
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
6933371 Bisazo dyestuffs based on hydroxynaphthalene carboxylic acid Gunter Schroder , Sophia Ebert , Karl-Heinz Etzbach , Rudiger Sens 2005-08-23
$872,000
6903197 Azoxy dyes and copper complexes thereof Karl-Heinz Etzbach , Rudiger Sens , Claudia Krah 2005-06-07
$843,000
6846956 Triarylmethane dyes Hellmut Kast , Thomas Gessner 2005-01-25
$393,000
6743901 Preparation of liquid formulations of basic azo dyes Michael Schmitt , Roland Merger 2004-06-01
$333,000
6727351 Azoxy dyes and their Cu complexes Karl-Heinz Etzbach , Rudiger Sens , Claudia Krah 2004-04-27
$142,000
6673206 Method of producing paper, paperboard and cardboard Friedrich Linhart , Bernd Dirks , Bernhard Mohr , Dietrich Fehringer 2004-01-06
$423,000
6346609 Cationic azo-dyes Karl-Heinz Etzbach , Torsten Freund 2002-02-12
$331,000
6048968 Cationic azo dyes based on aminobenzoic acid Karl-Heinz Etzbach , Torsten Freund 2000-04-11
6048969 Cationic sulfonic acid dyes Gunter Schroder , Udo Mayer 2000-04-11
5098521 Production of paper, board and cardboard from paper stocks containing foreign materials Enrique Freudenberg , Friedrich Linhart , Heinrich Hartmann , Walter Denzinger , Michael Kroener +1 more 1992-03-24
