Diether Ruppel

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Frankfurt am Main, DE

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Patents Grantslast 30 patents

Information Patent Grant
Microencapsulation of biologically active material
- Patent number 5,100,673
- Issue date Mar 31, 1992
- Hoechst Aktiengesellschaft
- Hebert Bader
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Biodegradable poly(hydroxyalkyl)amino dicarboxylic acid) derivative...
- Patent number 5,041,291
- Issue date Aug 20, 1991
- Hoechst Aktiengesellschaft
- Hubert Bader
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Biodegradable poly(hydroxyalkyl)amino dicarboxylic acid) derivative...
- Patent number 4,906,473
- Issue date Mar 6, 1990
- Hoechst Aktiengesellschaft
- Hubert Bader
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Biologically degradable polyamide for depot preparations having con...
- Patent number 4,835,248
- Issue date May 30, 1989
- Hoechst Aktiengesellschaft
- Hubert Bader
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE