COGENT LIGHT TECHNOLOGIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
F21V FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR 4106
 
  
 
G02B OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS 1204

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6854864 Light pipe light source with flux condensing light pipeMay 19, 03Feb 15, 05[F21V]
6672740 Condensing and collecting optical system using parabolic reflectors or a corresponding ellipsoid/hyperboloid pair of reflectorsJun 28, 00Jan 06, 04[F21V]
6634759 Coupling of light from a light source to a target using dual ellipsoidal reflectorsSep 27, 00Oct 21, 03[G02B]
6616304 Temperature control for arc lampsOct 03, 01Sep 09, 03[F21V]
6595673 Coupling of high intensity light into low melting point fiber optics using polygonal homogenizersDec 20, 99Jul 22, 03[F21V]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0257,653 Polarization recovery system for projection displaysAbandonedMay 21, 04Dec 23, 04[G02B]
2004/0257,654 Polarization recovery system for projection displaysAbandonedMay 21, 04Dec 23, 04[G02B]
2004/0258,342 Polarization recovery system for projection displaysAbandonedMay 21, 04Dec 23, 04[G02B]
2004/0240,058 Polarization recovery system for projection displaysAbandonedJul 07, 04Dec 02, 04[G02B]
2004/0240,059 Polarization recovery system for projection displaysAbandonedJul 07, 04Dec 02, 04[G02B]
6494606 Color correction for fiber optic illumination systemsExpiredDec 21, 99Dec 17, 02[F21V, F21S]
6496620 Method and apparatus for improving power handling capabilities of polymer fibersExpiredApr 21, 99Dec 17, 02[G02B]
4986622 Fiber optic light transmission apparatusExpiredJun 08, 89Jan 22, 91[F21V, G02B, A61B]
4870952 Fiber optic illuminator for use in surgeryExpiredOct 28, 83Oct 03, 89[A61B]

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