David K. Booth

Person

Tigard, OR, US

People

Patents Grantslast 30 patents

Information Patent Grant
Apparatus for determining the location of a pointer within a region...
- Patent number 8,456,418
- Issue date Jun 4, 2013
- SMART Technologies ULC
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Dual mode touch systems
- Patent number 8,274,496
- Issue date Sep 25, 2012
- SMART Technologies ULC
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Apparatus for determining the location of a pointer within a region...
- Patent number 7,274,356
- Issue date Sep 25, 2007
- Smart Technologies Inc.
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Rapidly responding, false detection immune alarm signal producing s...
- Patent number 7,075,445
- Issue date Jul 11, 2006
- GE Security, Inc.
- David K. Booth
- G08 - SIGNALLING
Information Patent Grant
Compact multi-path LCD projector
- Patent number 6,273,567
- Issue date Aug 14, 2001
- Arlie R. Conner
- G02 - OPTICS
Information Patent Grant
Multi-pixel microlens illumination in electronic display projector
- Patent number 6,254,237
- Issue date Jul 3, 2001
- David K. Booth
- G02 - OPTICS
Information Patent Grant
LCD projector illumination system having blue and red dichroic mirr...
- Patent number 6,111,618
- Issue date Aug 29, 2000
- Lightware, Inc.
- David K. Booth
- G02 - OPTICS
Information Patent Grant
High efficiency polarizing converter
- Patent number 5,973,833
- Issue date Oct 26, 1999
- Lightware, Inc.
- David K. Booth
- G02 - OPTICS
Information Patent Grant
Centrifugal illumination system
- Patent number 5,868,481
- Issue date Feb 9, 1999
- Lightware, Inc.
- Arlie R. Conner
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
LCD projector with shift and tilt field lens
- Patent number 5,836,664
- Issue date Nov 17, 1998
- Lightware, Inc.
- Arlie R. Conner
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projection illumination system
- Patent number 5,742,438
- Issue date Apr 21, 1998
- In Focus Systems, Inc.
- Arlie R. Conner
- G02 - OPTICS
Information Patent Grant
Projector cooling system
- Patent number 5,738,427
- Issue date Apr 14, 1998
- Lightware, Inc.
- David K. Booth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
LCD projector capable of preventing thermal shimmering by using a t...
- Patent number 5,682,216
- Issue date Oct 28, 1997
- CTX Opto-Electronics Corp.
- Falcon Lin
- G02 - OPTICS
Information Patent Grant
LCD projector with retractable projection lens assembly
- Patent number 5,642,927
- Issue date Jul 1, 1997
- Lightware, Inc.
- David K. Booth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Projector illumination system
- Patent number 5,628,553
- Issue date May 13, 1997
- Lightware, Inc.
- David K. Booth
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information Patent Grant
Invertible and orthoscopic liquid crystal display projector
- Patent number 5,622,417
- Issue date Apr 22, 1997
- Lightware, Inc.
- Arlie R. Conner
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY

Patents Applicationslast 30 patents

Information Patent Application
DUAL MODE TOUCH SYSTEMS
- Publication number 20130120316
- Publication date May 16, 2013
- SMART TECHNOLOGIES ULC
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
DUAL MODE TOUCH SYSTEMS
- Publication number 20090146973
- Publication date Jun 11, 2009
- SMART TECHNOLOGIES ULC
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Smoke detection method and system
- Publication number 20090140868
- Publication date Jun 4, 2009
- David Booth
- G08 - SIGNALLING
Information Patent Application
Apparatus For Determining The Location Of A Pointer Within A Region...
- Publication number 20070236454
- Publication date Oct 11, 2007
- SMART TECHNOLOGIES, INC.
- CHI MAN CHARLES UNG
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Dual mode touch system
- Publication number 20050243070
- Publication date Nov 3, 2005
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Apparatus for determining the location of a pointer within a region...
- Publication number 20050078095
- Publication date Apr 14, 2005
- Chi Man Charles Ung
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Rapidly responding, false detection immune alarm signal producing s...
- Publication number 20040063154
- Publication date Apr 1, 2004
- David K. Booth
- G08 - SIGNALLING

David K. Booth

Person

Patents Grantslast 30 patents

Apparatus for determining the location of a pointer within a region...

Dual mode touch systems

Apparatus for determining the location of a pointer within a region...

Rapidly responding, false detection immune alarm signal producing s...

Compact multi-path LCD projector

Multi-pixel microlens illumination in electronic display projector

LCD projector illumination system having blue and red dichroic mirr...

High efficiency polarizing converter

Centrifugal illumination system

LCD projector with shift and tilt field lens

Projection illumination system

Projector cooling system

LCD projector capable of preventing thermal shimmering by using a t...

LCD projector with retractable projection lens assembly

Projector illumination system

Invertible and orthoscopic liquid crystal display projector

Patents Applicationslast 30 patents

DUAL MODE TOUCH SYSTEMS

DUAL MODE TOUCH SYSTEMS

Smoke detection method and system

Apparatus For Determining The Location Of A Pointer Within A Region...

Dual mode touch system

Apparatus for determining the location of a pointer within a region...

Rapidly responding, false detection immune alarm signal producing s...