Douglas J. Frederick

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Eau Claire, WI, US

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Patents Applicationslast 30 patents

Information Patent Application
AUTONOMOUS FIRE EXTINGUISHER
- Publication number 20230333570
- Publication date Oct 19, 2023
- ONEEVENT TECHNOLOGIES, INC.
- Douglas J. Frederick
- G01 - MEASURING TESTING
Information Patent Application
JAR SENSORS FOR FOOD PRESERVATION
- Publication number 20230074367
- Publication date Mar 9, 2023
- National Presto Industries, Inc.
- Douglas J. Frederick
- H04 - ELECTRIC COMMUNICATION TECHNIQUE