David Witham

Person

Ventura, CA, US

People

Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for operating a germicidal UV device with a pr...
- Patent number 10,328,168
- Issue date Jun 25, 2019
- Ultraviolet Devices, Inc
- Peter Veloz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method and apparatus for operating a germicidal UV device with a pr...
- Patent number 9,666,424
- Issue date May 30, 2017
- Ultraviolet Devices, Inc
- Peter Veloz
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Method and apparatus for optimizing germicidal lamp performance in...
- Patent number 9,265,174
- Issue date Feb 16, 2016
- Ultraviolet Devices, Inc
- Aleksandr Shostak
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Grant
Mobile room sanitizer
- Patent number D684671
- Issue date Jun 18, 2013
- Ultraviolet Devices, Inc
- Filiberto Betancourt
- D23 - Environmental heating and cooling
Information Patent Grant
Appliance for disinfection of HVAC systems
- Patent number 7,421,851
- Issue date Sep 9, 2008
- Ultraviolet Devices, Inc
- David L. Witham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Lamp keying system and method
- Patent number 7,354,317
- Issue date Apr 8, 2008
- Ultraviolet Devices, Inc
- David L. Witham
- F21 - LIGHTING
Information Patent Grant
Lamp standard
- Patent number 7,229,195
- Issue date Jun 12, 2007
- Ultraviolet Devices, Inc
- David L. Witham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Lamp keying system
- Patent number 7,137,728
- Issue date Nov 21, 2006
- Ultraviolet Devices, Inc
- David L. Witham
- F21 - LIGHTING
Information Patent Grant
Appliance for disinfection of HVAC systems
- Patent number 7,107,778
- Issue date Sep 19, 2006
- David L. Witham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Ultraviolet lamp standards and methods of use thereof
- Patent number 6,979,103
- Issue date Dec 27, 2005
- Ultraviolet Devices, Inc
- David L. Witham
- F24 - HEATING RANGES VENTILATING
Information Patent Grant
Device to disinfect air or surfaces with radiation and method therefor
- Patent number 6,670,626
- Issue date Dec 30, 2003
- Ultraviolet Devices, Inc
- David L. Witham
- F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

Information Patent Application
Method and apparatus for optimizing germicidal lamp performance in...
- Publication number 20150115170
- Publication date Apr 30, 2015
- Aleksandr Shostak
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Lamp keying system and method
- Publication number 20080227320
- Publication date Sep 18, 2008
- David L. Witham
- F21 - LIGHTING
Information Patent Application
Lamp keying system and method
- Publication number 20070058367
- Publication date Mar 15, 2007
- UltraViolet Devices, Inc.
- David L. Witham
- F21 - LIGHTING
Information Patent Application
Appliance for disinfection of HVAC systems
- Publication number 20060254298
- Publication date Nov 16, 2006
- UltraViolet Devices, Inc.
- David L. Witham
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Lamp standard
- Publication number 20060072318
- Publication date Apr 6, 2006
- UltraViolet Devices, Inc.
- David L. Witham
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Disinfecting system and method for liquid systems
- Publication number 20060011558
- Publication date Jan 19, 2006
- Forrest B. Fencl
- F24 - HEATING RANGES VENTILATING
Information Patent Application
Low level ultraviolet disinfecting system
- Publication number 20050163652
- Publication date Jul 28, 2005
- Richard N. Metzger
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Ultraviolet lamp standards and methods of use thereof
- Publication number 20050024867
- Publication date Feb 3, 2005
- David L. Witham
- A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information Patent Application
Apparatus and method for keying lamp and lamp fixture
- Publication number 20040141332
- Publication date Jul 22, 2004
- David L. Witham
- F21 - LIGHTING
Information Patent Application
Device to disinfect air or surfaces with radiation and method therefor
- Publication number 20030001113
- Publication date Jan 2, 2003
- Ultra Violate, a California Corporation
- David L. Witham
- F24 - HEATING RANGES VENTILATING

David Witham

Person

Patents Grantslast 30 patents

Method and apparatus for operating a germicidal UV device with a pr...

Method and apparatus for operating a germicidal UV device with a pr...

Method and apparatus for optimizing germicidal lamp performance in...

Mobile room sanitizer

Appliance for disinfection of HVAC systems

Lamp keying system and method

Lamp standard

Lamp keying system

Appliance for disinfection of HVAC systems

Ultraviolet lamp standards and methods of use thereof

Device to disinfect air or surfaces with radiation and method therefor

Patents Applicationslast 30 patents

Method and apparatus for optimizing germicidal lamp performance in...

Lamp keying system and method

Lamp keying system and method

Appliance for disinfection of HVAC systems

Lamp standard

Disinfecting system and method for liquid systems

Low level ultraviolet disinfecting system

Ultraviolet lamp standards and methods of use thereof

Apparatus and method for keying lamp and lamp fixture

Device to disinfect air or surfaces with radiation and method therefor