John K. Duncan

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Solon, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Gas generator attachment
- Patent number 5,549,037
- Issue date Aug 27, 1996
- Effervescent Products, LLC
- William C. Stumphauzer
- B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
Information Patent Grant
Microwaveable/stovetop cooking utensil
- Patent number 4,868,360
- Issue date Sep 19, 1989
- Corning Glass Works
- John K. Duncan
- A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...