Photran Corporation

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
H02M APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF 1101

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
5777863 Low-frequency modulated current mode power supply for magnetron sputtering cathodesJun 14, 96Jul 07, 98[H02M]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5776594 Transparent electrodes for liquid cells and liquid crystal displaysExpiredApr 15, 96Jul 07, 98[B32B]
5679131 Method for producing titanium oxide from ore concentratesExpiredMar 13, 96Oct 21, 97[C22B]
5556694 Faceplate for a touch-sensitive video display unitExpiredDec 07, 94Sep 17, 96[B32B]
5541770 Light attenuating anti-reflection coating including electrically conductive layersExpiredSep 30, 94Jul 30, 96[G02B]
5528319 Privacy filter for a display deviceExpiredNov 08, 94Jun 18, 96[H04N]
5512390 Light-weight electrical-storage batteryExpiredJul 21, 94Apr 30, 96[H01M]
5508091 Transparent electrodes for liquid cells and liquid crystal displaysExpiredDec 30, 93Apr 16, 96[B32B]
5421979 Load-lock drum-type coating apparatusExpiredAug 03, 93Jun 06, 95[C23C]
5362552 Visible-spectrum anti-reflection coating including electrically-conductive metal oxide layersExpiredSep 23, 93Nov 08, 94[B32B]
5337191 Broad band pass filter including metal layers and dielectric layers of alternating refractive indexExpiredApr 13, 93Aug 09, 94[G02B]
5328585 Linear planar-magnetron sputtering apparatus with reciprocating magnet-arrayExpiredDec 11, 92Jul 12, 94[C23C]

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