David William Stauffer

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Portland, OR, US

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Patents Grantslast 30 patents

Information Patent Grant
Ocean wave drill bit corkscrew electricity generator
- Patent number 11,952,973
- Issue date Apr 9, 2024
- David William Stauffer
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Windmill hydroelectricity generator
- Patent number 11,761,426
- Issue date Sep 19, 2023
- David William Stauffer
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Zero-fossil-fuel-using heating and cooling apparatus for residences...
- Patent number 11,624,511
- Issue date Apr 11, 2023
- David William Stauffer
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Zero-fossil-fuel-using heating and cooling apparatus for residences...
- Patent number 10,072,637
- Issue date Sep 11, 2018
- David William Stauffer
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...

Patents Applicationslast 30 patents

Information Patent Application
ZERO-FOSSIL-FUEL-USING HEATING AND COOLING APPARATUS FOR RESIDENCES...
- Publication number 20220364740
- Publication date Nov 17, 2022
- David William Stauffer
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Zero-Fossil-Fuel-Using Heating and Cooling Apparatus for Residences...
- Publication number 20170356427
- Publication date Dec 14, 2017
- David William Stauffer
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Application
Uphill River Siphoning Array Apparatus
- Publication number 20170122343
- Publication date May 4, 2017
- David William Stauffer
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
Stauffer submerged electricity generator
- Publication number 20140191509
- Publication date Jul 10, 2014
- David William Stauffer
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...