Donald L. Tymchuck

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Minnetonka, MN, US

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Patents Grantslast 30 patents

Information Patent Grant
Standardized test for dysphagia
- Patent number 5,976,084
- Issue date Nov 2, 1999
- Regents of The University of Minnesota
- Donald L. Tymchuck
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Package for perishable produce
- Patent number 4,189,868
- Issue date Feb 26, 1980
- General Mills, Inc.
- Donald L. Tymchuck
- B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL