Inventor · disambiguated record
David K. Booth
Also filed as: BOOTH DAVID · BOOTH DAVID E · BOOTH DAVID K · BOOTH DAVID KENNETH
16 granted patents·4 pending applications·594 citations·filing 1994–2017
95Inventor score
Files withLIGHTWARE INC8UNG CHI MAN CHARLES3BOOTH DAVID K1CTX OPTO ELECTRONICS CORP1GE SECURITY INC1
Top patents by PatentIndex Score
20 records- 0195US7274356B2Apparatus for determining the location of a pointer within a region of interestSMART TECHNOLOGIES INC·Filed 2003·Granted Sep 25, 2007·137 cites·89 claims
- 0295US6273567B1Compact multi-path LCD projectorFiled 1998·Granted Aug 14, 2001·70 cites·41 claims
- 0391US5642927ALCD projector with retractable projection lens assemblyLIGHTWARE INC·Filed 1995·Granted Jul 1, 1997·36 cites·33 claims
- 0482US8456418B2Apparatus for determining the location of a pointer within a region of interestUNG CHI MAN CHARLES·Filed 2007·Granted Jun 4, 2013·13 cites·19 claims
- 0582US8274496B2Dual mode touch systemsUNG CHI MAN CHARLES·Filed 2008·Granted Sep 25, 2012·11 cites·42 claims
- 0678US5738427AProjector cooling systemLIGHTWARE INC·Filed 1997·Granted Apr 14, 1998·13 cites·21 claims
- 0776US5836664ALCD projector with shift and tilt field lensLIGHTWARE INC·Filed 1997·Granted Nov 17, 1998·45 cites·17 claims
- 0876US5742438AProjection illumination systemIN FOCUS SYSTEMS INC·Filed 1994·Granted Apr 21, 1998·41 cites·22 claims
- 0974US5973833AHigh efficiency polarizing converterLIGHTWARE INC·Filed 1997·Granted Oct 26, 1999·40 cites·22 claims
- 1073US7075445B2Rapidly responding, false detection immune alarm signal producing smoke detectorGE SECURITY INC·Filed 2003·Granted Jul 11, 2006·26 cites·31 claims
- 1172US6254237B1Multi-pixel microlens illumination in electronic display projectorFiled 1999·Granted Jul 3, 2001·38 cites·22 claims
- 1272US5622417AInvertible and orthoscopic liquid crystal display projectorLIGHTWARE INC·Filed 1995·Granted Apr 22, 1997·38 cites·14 claims
- 1370US5868481ACentrifugal illumination systemLIGHTWARE INC·Filed 1996·Granted Feb 9, 1999·39 cites·25 claims
- 1460US5682216ALCD projector capable of preventing thermal shimmering by using a thermal diffusion filmCTX OPTO ELECTRONICS CORP·Filed 1996·Granted Oct 28, 1997·34 cites·4 claims
- 1551US2013120316A1Dual mode touch systemsSMART TECHNOLOGIES ULC·Filed 2012·Application pending·0 cites
- 1644US6111618ALCD projector illumination system having blue and red dichroic mirrors positioned such that blue mirror receives light before red mirrorLIGHTWARE INC·Filed 1998·Granted Aug 29, 2000·12 cites·21 claims
- 1743US2005075628A1Variable intensity wide-angle illuminatorFiled 2003·Application pending·0 cites
- 1842US2017307200A1Light fixture with optimized cooling systemBOOTH DAVID K·Filed 2017·Application pending·0 cites
- 1939US2012274765A1Apparatus for determining the location of a pointer within a region of interestUNG CHI MAN CHARLES·Filed 2012·Application pending·0 cites
- 2038US5628553AProjector illumination systemLIGHTWARE INC·Filed 1995·Granted May 13, 1997·1 cites·14 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →