Inventor · disambiguated record
David Kappel
Also filed as: KAPPEL DAVID · KAPPEL DAVID W
19 granted patents·4 pending applications·940 citations·filing 1993–2019
96Inventor score
Top patents by PatentIndex Score
23 records- 0195US6746124B2Flashlight producing uniform high brightnessFiled 2002·Granted Jun 8, 2004·115 cites·25 claims
- 0295US5704700ALaser illuminated image projection system and method of using samePROXIMA CORP·Filed 1995·Granted Jan 6, 1998·168 cites·45 claims
- 0394US6577387B2Inspection of ophthalmic lenses using absorptionJOHNSON & JOHNSON VISION CARE·Filed 2000·Granted Jun 10, 2003·78 cites·47 claims
- 0493US6606173B2Illumination device and method for laser projectorRIAKE CORP·Filed 2001·Granted Aug 12, 2003·72 cites·1 claims
- 0592US6220713B1Projection lens and systemCOMPAQ COMPUTER CORP·Filed 1998·Granted Apr 24, 2001·41 cites·6 claims
- 0689US7554737B2Illumination device and method using adaptable source and output formatRIAKE CORP·Filed 2005·Granted Jun 30, 2009·24 cites·5 claims
- 0789US6870650B2Illumination device and method for laser projectorRIAKE CORP·Filed 2003·Granted Mar 22, 2005·44 cites·19 claims
- 0887US6819506B1Optical lens system for projecting light in a lambertion pattern from a high power led light sourceINFINITY TRADING CO LTD·Filed 2003·Granted Nov 16, 2004·111 cites·19 claims
- 0986US5453803ALow profile liquid crystal projector and method of using samePROXIMA CORP·Filed 1994·Granted Sep 26, 1995·62 cites·12 claims
- 1084US5510861ACompact projector and method of using samePROXIMA CORP·Filed 1994·Granted Apr 23, 1996·28 cites·10 claims
- 1182US5700076ALaser illuminated image producing system and method of using samePROXIMA CORP·Filed 1994·Granted Dec 23, 1997·62 cites·21 claims
- 1281US5400095ADisplay projection method and apparatus an optical input device thereforPROXIMA CORP·Filed 1993·Granted Mar 21, 1995·59 cites·24 claims
- 1377US6362922B2Projection lens and systemCOMPAQ COMP CORPORTION·Filed 2001·Granted Mar 26, 2002·20 cites·15 claims
- 1472US5321450ALow profile liquid crystal projector and method of using samePROXIMA CORP·Filed 1993·Granted Jun 14, 1994·26 cites·42 claims
- 1565US6795189B2Universal microplate analyzerPACKARD INSTRUMENT CO INC·Filed 2001·Granted Sep 21, 2004·7 cites·48 claims
- 1665US6407864B1Automated system for testing two dimensional detector arrays and optical systems using sequential filtersFiled 2000·Granted Jun 18, 2002·9 cites·17 claims
- 1753US11795958B2Method for determining operating states of a fanZIEHL ABEGG SE·Filed 2019·Granted Oct 24, 2023·0 cites·11 claims
- 1852US2013124313A1Methods and systems for monetizing web page trafficGOVISTA LLC·Filed 2012·Application pending·0 cites
- 1948US2004189981A1Inspection of ophthalmic lenses using absorptionFiled 2003·Application pending·0 cites
- 2045US6052214ASystem and method for producing an enhanced imageFiled 1998·Granted Apr 18, 2000·11 cites·19 claims
- 2144US2005012929A1Universal microplate analyzerFiled 2004·Application pending·0 cites
- 2237US2016073677A1Electronic cigarette liquid flavoring and nicotine additivesKAPPEL DAVID·Filed 2015·Application pending·0 cites
- 2334US5483382AProjection lens and method of using samePROXIMA CORP·Filed 1993·Granted Jan 9, 1996·3 cites·19 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →