Helmut M. Sassenfeld

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Seattle, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Increased recovery of active proteins
- Patent number 7,544,784
- Issue date Jun 9, 2009
- Immunex Corporation
- Helmut M. Sassenfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Increased recovery of active proteins
- Patent number 7,157,557
- Issue date Jan 2, 2007
- Immunex Corporation
- Helmut M. Sassenfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Grant
Polypeptide purification reagents and methods for their use
- Patent number 7,083,948
- Issue date Aug 1, 2006
- Immunex Corporation
- Helmut M. Sassenfeld
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...
Information Patent Grant
Nonglycosylated human interleukin-3 analog proteins
- Patent number 5,128,450
- Issue date Jul 7, 1992
- David L. Urdal
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Purification of G-CSF
- Patent number 5,055,555
- Issue date Oct 8, 1991
- Helmut Sassenfeld
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Increased recovery of active proteins
- Publication number 20070270577
- Publication date Nov 22, 2007
- Immunex Corporation
- Helmut M. Sassenfeld
- C07 - ORGANIC CHEMISTRY
Information Patent Application
Increased recovery of active proteins
- Publication number 20020182665
- Publication date Dec 5, 2002
- Helmut M. Sassenfeld
- C07 - ORGANIC CHEMISTRY