Henry Frazier Pruett

Person

Sandy, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Dual-control LED dimming system and method
- Patent number 11,172,550
- Issue date Nov 9, 2021
- Semiconductor Components Industries, LLC
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electrical junction box with removable sealing cover
- Patent number 10,681,829
- Issue date Jun 9, 2020
- SunPower Corporation
- James Dorenkamp
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Serviceable electrical box thermal management
- Patent number 9,763,360
- Issue date Sep 12, 2017
- SunPower Corporation
- James Dorenkamp
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power-line communication coupling
- Patent number 9,419,438
- Issue date Aug 16, 2016
- SunPower Corporation
- Henry F. Pruett
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Power point tracking
- Patent number 9,342,088
- Issue date May 17, 2016
- SunPower Corporation
- Robert Batten
- G05 - CONTROLLING REGULATING
Information Patent Grant
Junction box thermal management
- Patent number 9,101,082
- Issue date Aug 4, 2015
- SunPower Corporation
- James Dorenkamp
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Power-line communication coupling
- Patent number 8,860,242
- Issue date Oct 14, 2014
- SolarBridge Technologies, Inc.
- Henry F. Pruett
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Lamp power pulse modulation in color sequential projection displays
- Patent number RE44279
- Issue date Jun 11, 2013
- Seiko Epson Corporation
- Steven E. Stark
- 353 - Optics: image projectors
Information Patent Grant
Projector device employing ballast with flyback converter
- Patent number 7,880,396
- Issue date Feb 1, 2011
- Seiko Epson Corporation
- Henry F. Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Light-emitting device driver circuit
- Patent number 7,633,245
- Issue date Dec 15, 2009
- InFocus Corporation
- Henry Frazier Pruett
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Light emitting device driver circuit
- Patent number 7,372,883
- Issue date May 13, 2008
- InFocus Corporation
- Henry Frazier Pruett
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Safety interlock apparatus and method
- Patent number 7,091,670
- Issue date Aug 15, 2006
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Electric power supply safety interlock system
- Patent number 6,853,152
- Issue date Feb 8, 2005
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Ultra-compact arc discharge lamp system with an additional electrode
- Patent number 6,639,365
- Issue date Oct 28, 2003
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Method and apparatus for canceling ripple current in a lamp
- Patent number 6,628,094
- Issue date Sep 30, 2003
- InFocus Corporation
- Henry Frazier Pruett
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Ultra-compact igniter circuit for arc discharge lamp
- Patent number 6,624,585
- Issue date Sep 23, 2003
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Lamp power pulse modulation in color sequential projection displays
- Patent number 6,520,648
- Issue date Feb 18, 2003
- InFocus Corporation
- Steven E. Stark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method and apparatus for canceling ripple current in a lamp
- Patent number 6,476,566
- Issue date Nov 5, 2002
- InFocus Systems, Inc.
- Henry Frazier Pruett
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Control for projector lamp heat dissipation
- Patent number 6,472,828
- Issue date Oct 29, 2002
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Projection lamp safety interlock apparatus and method
- Patent number 6,424,097
- Issue date Jul 23, 2002
- InFocus Corporation
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
ARC lamp igniter apparatus and method
- Patent number 5,861,718
- Issue date Jan 19, 1999
- In Focus Systems, Inc.
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Protection lamp safety interconnect apparatus and method
- Patent number 5,855,488
- Issue date Jan 5, 1999
- In Focus Systems, Inc.
- Brian G. Heintz
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DUAL-CONTROL LED DIMMING SYSTEM AND METHOD
- Publication number 20200314975
- Publication date Oct 1, 2020
- Semiconductor Components Industries, LLC
- Henry Frazier PRUETT
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Junction Box Thermal Management
- Publication number 20170354057
- Publication date Dec 7, 2017
- SunPower Corporation
- James Dorenkamp
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
THD IN OFF-LINE CONVERTERS
- Publication number 20170229957
- Publication date Aug 10, 2017
- Semiconductor Components Industries, LLC
- Henry Frazier PRUETT
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
POWER POINT TRACKING
- Publication number 20160254673
- Publication date Sep 1, 2016
- SunPower Corporation
- Robert Batten
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Serviceable Electrical Box Thermal Management
- Publication number 20150342084
- Publication date Nov 26, 2015
- SunPower Corporation
- James Dorenkamp
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
POWER-LINE COMMUNICATION COUPLING
- Publication number 20150163074
- Publication date Jun 11, 2015
- Henry F. Pruett
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
Power Point Tracking
- Publication number 20110160930
- Publication date Jun 30, 2011
- AZURAY TECHNOLOGIES, INC.
- Robert Batten
- G05 - CONTROLLING REGULATING
Information Patent Application
Projector Device Employing Ballast with Flyback Converter
- Publication number 20080309246
- Publication date Dec 18, 2008
- InFocus Corporation
- Henry F. Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
LIGHT EMITTING DEVICE DRIVER CIRCUIT
- Publication number 20080180043
- Publication date Jul 31, 2008
- InFocus Corporation
- Henry Frazier Pruett
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Light emitting device driver circuit
- Publication number 20060193357
- Publication date Aug 31, 2006
- INFOCUS CORPORATION
- Henry Frazier Pruett
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Safety interlock apparatus and method
- Publication number 20050041354
- Publication date Feb 24, 2005
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Electric power supply safety interlock system
- Publication number 20030057849
- Publication date Mar 27, 2003
- Henry Frazier Pruett
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Application
Ultra-compact arc discharge lamp system with an additional electrode
- Publication number 20030057867
- Publication date Mar 27, 2003
- INFOCUS CORPORATION
- Henry Frazier Pruett
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ultra-compact igniter circuit for arc discharge lamp
- Publication number 20030057878
- Publication date Mar 27, 2003
- INFOCUS CORPORATION
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Method and apparatus for canceling ripple current in a lamp
- Publication number 20020195976
- Publication date Dec 26, 2002
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information Patent Application
Lamp power pulse modulation in color sequential projection displays
- Publication number 20020140910
- Publication date Oct 3, 2002
- Steven E. Stark
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHOD AND APPARATUS FOR CANCELING RIPPLE CURRENT IN A LAMP
- Publication number 20020101194
- Publication date Aug 1, 2002
- Henry Frazier Pruett
- H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR

Henry Frazier Pruett

Person

Patents Grantslast 30 patents

Dual-control LED dimming system and method

Electrical junction box with removable sealing cover

Serviceable electrical box thermal management

Power-line communication coupling

Power point tracking

Junction box thermal management

Power-line communication coupling

Lamp power pulse modulation in color sequential projection displays

Projector device employing ballast with flyback converter

Light-emitting device driver circuit

Light emitting device driver circuit

Safety interlock apparatus and method

Electric power supply safety interlock system

Ultra-compact arc discharge lamp system with an additional electrode

Method and apparatus for canceling ripple current in a lamp

Ultra-compact igniter circuit for arc discharge lamp

Lamp power pulse modulation in color sequential projection displays

Method and apparatus for canceling ripple current in a lamp

Control for projector lamp heat dissipation

Projection lamp safety interlock apparatus and method

ARC lamp igniter apparatus and method

Protection lamp safety interconnect apparatus and method

Patents Applicationslast 30 patents

DUAL-CONTROL LED DIMMING SYSTEM AND METHOD

Junction Box Thermal Management

THD IN OFF-LINE CONVERTERS

POWER POINT TRACKING

Serviceable Electrical Box Thermal Management

POWER-LINE COMMUNICATION COUPLING

Power Point Tracking

Projector Device Employing Ballast with Flyback Converter

LIGHT EMITTING DEVICE DRIVER CIRCUIT

Light emitting device driver circuit

Safety interlock apparatus and method

Electric power supply safety interlock system

Ultra-compact arc discharge lamp system with an additional electrode

Ultra-compact igniter circuit for arc discharge lamp

Method and apparatus for canceling ripple current in a lamp

Lamp power pulse modulation in color sequential projection displays

METHOD AND APPARATUS FOR CANCELING RIPPLE CURRENT IN A LAMP