Hermann Seifert

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Cologne, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process for the preparation of perpropionic acid solutions
- Patent number 4,088,679
- Issue date May 9, 1978
- Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
- Gunter Prescher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of perpropionic acid solutions
- Patent number 4,087,454
- Issue date May 2, 1978
- Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
- Gunter Prescher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the preparation of percarboxylic acid solutions
- Patent number 4,059,619
- Issue date Nov 22, 1977
- Deutsche Gold- und Silber-Scheideanstalt vormals Roessler
- Gunter Prescher
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the hydroxylation of phenol
- Patent number 4,053,523
- Issue date Oct 11, 1977
- Bayer Aktiengesellschaft
- Hermann Seifert
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Process for the hydroxylation of phenols and phenol ethers in the n...
- Patent number 4,045,496
- Issue date Aug 30, 1977
- Bayer Aktiengesellschaft
- Hermann Seifert
- C07 - ORGANIC CHEMISTRY