Jorrit Wijtsma

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Drachten, NL

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Patents Grantslast 30 patents

Information Patent Grant
Irradiation device
- Patent number 6,005,254
- Issue date Dec 21, 1999
- U.S. Philips Corporation
- Jorrit Wijtsma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Irradiation device
- Patent number 4,866,284
- Issue date Sep 12, 1989
- U.S. Philips Corporation
- Johannes A. Frankena
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Ultraviolet irradiation device
- Patent number 4,839,513
- Issue date Jun 13, 1989
- U.S. Philips Corporation
- Jorrit Wijtsma
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE