IN FOCUS SYSTEMS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR 196

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5795049 Image projection systemAug 27, 96Aug 18, 98[G03B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6628094 Method and apparatus for canceling ripple current in a lampExpiredJul 30, 02Sep 30, 03[H05B, G05F]
6147812 Projection zoom lens system and projector apparatusExpiredJul 28, 99Nov 14, 00[G02C]
5353075 Convertible flat panel display systemExpiredSep 29, 93Oct 04, 94[G03B]
5337103 Case for overhead projection display panelExpiredJan 06, 93Aug 09, 94[G03B]
D324210 Electronic data display panel for use with an overhead projectorExpiredNov 17, 88Feb 25, 92[]
5050965 Color display using supertwisted nematic liquid crystal materialExpiredNov 22, 89Sep 24, 91[G02F]
D317446 Electronic data display panel for use with an overhead projectorExpiredNov 17, 88Jun 11, 91[]
4966441 Hybrid color display systemExpiredJun 07, 89Oct 30, 90[G02F]
4952036 High resolution LCD display systemExpiredJul 12, 89Aug 28, 90[G02F]
4917465 Color display systemExpiredSep 01, 89Apr 17, 90[G02F]
4917464 High brightness/contrast color display systemWithdrawnMar 28, 89Apr 17, 90[G03B, G02F]

Top Inventors for This Owner

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