Nancy A. Staffend

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Haslett, MI, US

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Patents Grantslast 30 patents

Information Patent Grant
High efficiency heating and/or cooling system and methods
- Patent number 10,612,800
- Issue date Apr 7, 2020
- Gilbert S. Staffend
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
High efficiency air delivery system and method
- Patent number 9,897,336
- Issue date Feb 20, 2018
- Gilbert S. Staffend
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
High efficiency positive displacement thermodynamic system
- Patent number 8,424,284
- Issue date Apr 23, 2013
- Gilbert Staffend
- F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS

Patents Applicationslast 30 patents

Information Patent Application
HIGH EFFICIENCY HEATING AND/OR COOLING SYSTEM AND METHODS
- Publication number 20180223846
- Publication date Aug 9, 2018
- Gilbert S. Staffend
- F24 - HEATING RANGES VENTILATING
Information Patent Application
HIGH EFFICIENCY HEATING AND/OR COOLING SYSTEM AND METHODS
- Publication number 20160377303
- Publication date Dec 29, 2016
- Gilbert S. Staffend
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HIGH EFFICIENCY THERMODYNAMIC SYSTEM
- Publication number 20140053558
- Publication date Feb 27, 2014
- Gilbert S. Staffend
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
HIGH EFFICIENCY POSITIVE DISPLACEMENT THERMODYNAMIC SYSTEM
- Publication number 20100050628
- Publication date Mar 4, 2010
- Gilbert Staffend
- F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES