HS

Helmut Springer

RU Ruhrchemie: 15 patents #4 of 98Top 5%
Hoechst Gmbh: 12 patents #295 of 4,020Top 8%
CG Celanese Chemicals Europe Gmbh: 10 patents #1 of 84Top 2%
OG Oxea Deutschland Gmbh: 3 patents #1 of 9Top 15%
HA Hoescht Aktiengesellschaft: 1 patents #26 of 159Top 20%
CG Celanese Gmbh: 1 patents #216 of 478Top 50%
IP Italimpianti Societa Italiana Impianti P.A.: 1 patents #7 of 34Top 25%
📍 Voerde, DE: #1 of 53 inventorsTop 2%
Overall (All Time): #65,947 of 4,157,543Top 2%
45
Patents All Time

Issued Patents All Time

Showing 1–25 of 45 patents

Patent #TitleCo-InventorsDate
7799945 Catalytic process for preparing aliphatic straight-chain and β-alkyl-branched carboxylic acids 2010-09-21
7358385 Bicyclo[4.3.0]nonane-3(4),7(8)-dicarboxylic acid and a process for its preparation Paolo Bavaj 2008-04-15
7342135 3(4),7(8)-Bis(aminomethyl)bicyclo[4.3.0]nonane and a process for its preparation Paolo Bavaj 2008-03-11
7317128 Process for preparing TCD-diamine Peter Lappe, Rainer Lukas 2008-01-08
7138544 Process for preparing aliphatic straight-chain and beta-alkyl-branched carboxylic acids Frank Winsberg 2006-11-21
7122706 Process for preparing TCD-monenal Peter Lappe, Rainer Lukas 2006-10-17
7015362 Process for preparing TCD-dialdehyde Peter Lappe, Rainer Lukas 2006-03-21
6982352 Process for preparing N-methyldialkylamines from secondary dialkylamines and formaldehyde Peter Lappe 2006-01-03
6939997 Process for preparing TCD-alcohol DM Peter Lappe, Rainer Lukas 2005-09-06
6800783 Method for the synthesis of aliphatic carboxylic acids from aldehydes Peter Lappe 2004-10-05
6696582 Method for producing aliphatic carboxylic acids from aldehydes Peter Heymanns 2004-02-24
6680395 Method for the synthesis of straight-chain aliphatic carboxylic acids from aldehydes 2004-01-20
6423856 Process for preparing ester plasticizers Klaus Dieter Merscher, Rudolf Heumuller, Klaus Schimmer, Heinz Strutz 2002-07-23
6288288 Process for preparing saturated alcohols 2001-09-11
5481044 Process for the preparation of .alpha.-alkyl substituted aldehydes Jurgen Weber 1996-01-02
5410072 Mixtures of isomeric pentanoic acids, esters prepared therefrom, and their use as lubricants Helmut Bahrmann, Wolfgang Greb, Georg Dambkes, Peter Heymanns, Heinz Kalbfell +6 more 1995-04-25
5354911 Process for the preparation of unsaturated ethers Jurgen Weber, Peter Lappe 1994-10-11
5264600 Process for the recovery of rhodium from residues of the distillation of products of the oxo synthesis Peter Lappe 1993-11-23
5182400 Process for the preparation of esters of 5-alkylpyridine-2,3-dicarboxylic acid Jurgen Weber, Peter Lappe 1993-01-26
5151537 Process for the recovery of rhodium from the residues of distillation processes Peter Lappe 1992-09-29
5091546 Novel rhodium recovery Peter Lappe 1992-02-25
5085835 Process for recovering rhodium Jurgen Weber, Ludger Bexten, Dieter Kupies, Peter Lappe 1992-02-04
5072037 Process for the preparation of 2-(4-chlorophenyl)-3-methylbutyric acid Jurgen Weber, Peter Lappe 1991-12-10
5072058 Process for the preparation of 2,2-dimethylpropane-1,3-diol Georg Dambkes, Peter Lappe, Franz Thonnessen 1991-12-10
5064508 Process for the separation of 2-methylalkanals from isomers thereof Jurgen Weber, Peter Lappe 1991-11-12