Jeffrey Klopfenstein

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Dubuque, IA, US

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Patents Grantslast 30 patents

Information Patent Grant
Under-floor pliable air duct/dispersion systems
- Patent number 11,739,958
- Issue date Aug 29, 2023
- Rite-Hite Holding Corporation
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Under-floor pliable air duct/dispersion systems
- Patent number 11,231,189
- Issue date Jan 25, 2022
- Rite-Hite Holding Corporation
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Under-floor pliable air duct/dispersion systems
- Patent number 10,274,216
- Issue date Apr 30, 2019
- Rite-Hite Holding Corporation
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
UNDER-FLOOR PLIABLE AIR DUCT/DISPERSION SYSTEMS
- Publication number 20240003562
- Publication date Jan 4, 2024
- RITE-HITE HOLDING CORPORATION
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING
Information Patent Application
UNDER-FLOOR PLIABLE AIR DUCT/DISPERSION SYSTEMS
- Publication number 20220146139
- Publication date May 12, 2022
- RITE-HITE HOLDING CORPORATION
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING
Information Patent Application
UNDER-FLOOR PLIABLE AIR DUCT/DISPERSION SYSTEMS
- Publication number 20190249890
- Publication date Aug 15, 2019
- RITE-HITE HOLDING CORPORATION
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING
Information Patent Application
FLEXIBLE AIR DUCTS WITH GRADUAL INFLATION
- Publication number 20120028562
- Publication date Feb 2, 2012
- Frank Heim
- F24 - HEATING RANGES VENTILATING
Information Patent Application
UNDER-FLOOR PLIABLE AIR DUCT/DISPERSION SYSTEMS
- Publication number 20100048121
- Publication date Feb 25, 2010
- Jeffrey Klopfenstein
- F24 - HEATING RANGES VENTILATING