Michael Preiss

Person

Wuppertal, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Production of enantiomer-free biarylketocarboxylic acids
- Patent number 6,172,259
- Issue date Jan 9, 2001
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of quinolinecarboxylic acids
- Patent number 5,155,223
- Issue date Oct 13, 1992
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of quinolonecarboxylic acid esters
- Patent number 5,095,112
- Issue date Mar 10, 1992
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of quinolonecarboxylic acids which can...
- Patent number 4,973,590
- Issue date Nov 27, 1990
- Bayer Aktiengesellschaft
- Michael Preiss
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Preparation of benzylidene compounds
- Patent number 4,633,007
- Issue date Dec 30, 1986
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of 1,4-dihydropyridinedicarboxylic esters
- Patent number 4,600,778
- Issue date Jul 15, 1986
- Bayer Aktiengesellschaft
- Werner Teller
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Preparation of o-nitrobenzaldehyde
- Patent number 4,450,297
- Issue date May 22, 1984
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Optically pure heterocyclic aminoacid compounds, a process for thei...
- Patent number 4,389,489
- Issue date Jun 21, 1983
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.-Lactam antibiotics and their medicinal use
- Patent number 4,386,089
- Issue date May 31, 1983
- Bayer Aktiengesellschaft
- Hans-Bodo Konig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Hetero-acetamido-cephalosporinates
- Patent number 4,338,434
- Issue date Jul 6, 1982
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Antibacterial and growth promoting .beta.-lactam antibiotics carryi...
- Patent number 4,294,827
- Issue date Oct 13, 1981
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.-Lactam antibiotics
- Patent number 4,251,524
- Issue date Feb 17, 1981
- Bayer Aktiengesellschaft
- Peter Feyen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Penicillin derivatives
- Patent number 4,235,774
- Issue date Nov 25, 1980
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.-Lactam antibiotics and their use
- Patent number 4,223,037
- Issue date Sep 16, 1980
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
2-Hetero-acetamido-penicillanates and cephalosporinates
- Patent number 4,215,118
- Issue date Jul 29, 1980
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.-Lactam antibiotics
- Patent number 4,208,412
- Issue date Jun 17, 1980
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Beta-lactam antibiotics
- Patent number 4,200,576
- Issue date Apr 29, 1980
- Bayer Aktiengesellschaft
- Peter Feyen
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Dioxopiperazine derivatives suitable for use as medicaments and .be...
- Patent number 4,182,762
- Issue date Jan 8, 1980
- Bayer Aktiengesellschaft
- Michael Preiss
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
.beta.Lactam antibiotics and process for their use
- Patent number 4,147,693
- Issue date Apr 3, 1979
- Bayer Aktiengesellschaft
- Hans-Bodo Konig
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Oxo-imidazolidine substituted cephalosporins and antibacterial comp...
- Patent number 4,107,304
- Issue date Aug 15, 1978
- Bayer Aktiengesellschaft
- Wilfried Schrock
- C07 - ORGANIC CHEMISTRY

Michael Preiss

Person

Patents Grantslast 30 patents

Production of enantiomer-free biarylketocarboxylic acids

Preparation of quinolinecarboxylic acids

Process for the preparation of quinolonecarboxylic acid esters

Process for the preparation of quinolonecarboxylic acids which can...

Preparation of benzylidene compounds

Process for the preparation of 1,4-dihydropyridinedicarboxylic esters

Preparation of o-nitrobenzaldehyde

Optically pure heterocyclic aminoacid compounds, a process for thei...

.beta.-Lactam antibiotics and their medicinal use

2-Hetero-acetamido-cephalosporinates

Antibacterial and growth promoting .beta.-lactam antibiotics carryi...

.beta.-Lactam antibiotics

Penicillin derivatives

.beta.-Lactam antibiotics and their use

2-Hetero-acetamido-penicillanates and cephalosporinates

.beta.-Lactam antibiotics

Beta-lactam antibiotics

Dioxopiperazine derivatives suitable for use as medicaments and .be...

.beta.Lactam antibiotics and process for their use

Oxo-imidazolidine substituted cephalosporins and antibacterial comp...