Knut Hammerstrom

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Cologne, DE

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Patents Grantslast 30 patents

Information Patent Grant
Alkyldiphenyl ether-sulphonic acid hydrazides, their preparation an...
- Patent number 4,329,499
- Issue date May 11, 1982
- Bayer Aktiengesellschaft
- Walter Horstmann
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for separating off phenol from a mixture thereof with a cresol
- Patent number 4,325,789
- Issue date Apr 20, 1982
- Bayer Aktiengesellschaft
- Alfredo Wust
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polyamines containing amide groups
- Patent number 4,319,019
- Issue date Mar 9, 1982
- Bayer Aktiengesellschaft
- Wolfgang Lehmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polyamines containing amide groups
- Patent number 4,250,298
- Issue date Feb 10, 1981
- Bayer Aktiengesellschaft
- Wolfgang Lehmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Polyamines containing amide groups
- Patent number 4,250,299
- Issue date Feb 10, 1981
- Bayer Aktiengesellschaft
- Wolfgang Lehmann
- D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
Information Patent Grant
Degradation of organic compounds in effluents by wet oxidation
- Patent number 4,124,505
- Issue date Nov 7, 1978
- Bayer Aktiengesellschaft
- Otto Horak
- C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE