David Burton Keiser

Follow

Person

Westminster, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Combined pressure, temperature and air vent device
- Patent number 8,100,149
- Issue date Jan 24, 2012
- Griswold Controls Inc
- David B Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Replaceable valve shaft sealing system
- Patent number 7,971,854
- Issue date Jul 5, 2011
- Griswold Controls Inc
- David B Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
High differential pressure, low torque precision temperature contro...
- Patent number 7,448,410
- Issue date Nov 11, 2008
- Griswold Controls Inc
- David Burton Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
High differential pressure, low torque precision temperature contro...
- Patent number 7,347,408
- Issue date Mar 25, 2008
- Griswold Controls Inc
- David Burton Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
Combined Pressure, Temperature and Air Vent Device
- Publication number 20090078327
- Publication date Mar 26, 2009
- GRISWOLD CONTROLS INC
- David Burton Keiser
- G01 - MEASURING TESTING
Information Patent Application
Replaceable Valve Shaft Sealing System
- Publication number 20090079138
- Publication date Mar 26, 2009
- GRISWOLD CONTROLS INC
- David Burton Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
High Differential Pressure, Low Torque Precision Temperature Contro...
- Publication number 20080092966
- Publication date Apr 24, 2008
- Griswold Controls, Inc
- David Burton Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
High Differential Pressure, Low Torque Precision Temperature Contro...
- Publication number 20070209721
- Publication date Sep 13, 2007
- Griswold Controls, Inc
- David Burton Keiser
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...