Donald W. Knoll

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Waukesha, WI, US

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Patents Grantslast 30 patents

Information Patent Grant
Reducing the ocular irritancy of anionic shampoos
- Patent number 4,992,266
- Issue date Feb 12, 1991
- S. C. Johnson & Son, Inc.
- Donald W Knoll
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Local treatment of dandruff, seborrheic dermatitis, and psoriasis
- Patent number 4,822,604
- Issue date Apr 18, 1989
- S. C. Johnson & Son, Inc.
- Donald W. Knoll
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE