Douglas B. Seifert

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Hatfield, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Hepatitis A virus culture process
- Patent number 6,194,210
- Issue date Feb 27, 2001
- Merck & Co., Inc.
- Frank S. Leu
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method of disrupting cultured cells using an impinging jet device
- Patent number 5,721,120
- Issue date Feb 24, 1998
- Merck & Co., Inc.
- Douglas B. Seifert
- C12 - BIOCHEMISTRY BEER SPIRITS WINE VINEGAR MICROBIOLOGY ENZYMOLOGY MUTATION...