Torsten Bertil Helting

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Patents Grantslast 30 patents

Information Patent Grant
Derivatives of diphtheria toxin, process for preparing them and age...
- Patent number 4,033,819
- Issue date Jul 5, 1977
- Behringwerke Aktiengesellschaft
- Torsten Bertil Helting
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Derivatives of the tetanus toxin, process for their preparation and...
- Patent number 4,029,765
- Issue date Jun 14, 1977
- Behringwerke Aktiengesellschaft
- Torsten Bertil Helting
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Protective antigen from pertussis, process for its preparation and...
- Patent number 4,029,766
- Issue date Jun 14, 1977
- Behringwerke Aktiengesellschaft
- Torsten Bertil Helting
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method for treating tetanus toxin with a proteinase to produce an a...
- Patent number 4,007,265
- Issue date Feb 1, 1977
- Behringwerke Aktiengesellschaft
- Torsten Bertil Helting
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE