DPHI ACQUISITIONS, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
G06F ELECTRIC DIGITAL DATA PROCESSING 5442
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 4134
 
  
 
B29D PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE 156
 
  
 
G11C STATIC STORES 1150
 
  
 
H03M CODING, DECODING OR CODE CONVERSION, IN GENERAL 1110
 
  
 
H04L TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION 1284

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9003201 Hardware protection for encrypted strings and protection of security parametersFeb 26, 09Apr 07, 15[G06F]
8762708 Secure content distribution systemOct 11, 08Jun 24, 14[H04L]
8307217 Trusted storageFeb 05, 08Nov 06, 12[H04L, G06F]
8001387 Removable storage medium with biometric accessApr 19, 06Aug 16, 11[G06F]
7051054 Method and apparatus for emulating read/write file system on a write-once storage diskMay 30, 00May 23, 06[G06F]
7016294 Inner region identifier for optical diskMar 25, 02Mar 21, 06[G11B]
D488817 Cartridge for a data storage diskMay 10, 02Apr 20, 04[1402]
D485113 Cartridge protective case for a data storage diskJul 03, 02Jan 13, 04[0604]
6631359 Writeable medium access control using a medium writeable areaSep 10, 99Oct 07, 03[G06F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7914711 Use of mother stamper for optical disk moldingExpiredJan 24, 02Mar 29, 11[B29D]
7913270 First surface removable optical disc within a cartridgeExpiredMay 30, 06Mar 22, 11[G11B]
7808879 Optical disk drive with micro-SILExpiredJun 08, 05Oct 05, 10[G11B]
7808880 Optical disk drive with hybrid solid immersion objective lensExpiredOct 16, 06Oct 05, 10[G11B]
7675835 Small form-factor optical data storage deviceExpiredFeb 07, 05Mar 09, 10[G11B]
7554898 Dual density disc with associated propertiesExpiredFeb 26, 02Jun 30, 09[G11B]
7368222 Optical data storage media with enhanced contrastExpiredMay 11, 01May 06, 08[G11B]
7337452 Tilt focus mechanism for an optical driveExpiredMar 21, 01Feb 26, 08[G11B]
7227817 Low profile optical headExpiredDec 07, 99Jun 05, 07[G11B]
7079472 Beamshaper for optical headExpiredJan 16, 01Jul 18, 06[G11B]
6990058 Structure and method for storing data on optical disksExpiredApr 03, 00Jan 24, 06[G11B]
6970401 Fringing field focus motor and mechanism for optical disk driveExpiredSep 04, 01Nov 29, 05[G11B]
6962668 Double-sided digital optical disk and method and apparatus for makingExpiredNov 06, 02Nov 08, 05[B29D]
6914724 Micro lens and method and apparatus for fabricatingExpiredOct 22, 02Jul 05, 05[B29D, G02B]
6914868 Low profile optical headExpiredMar 31, 00Jul 05, 05[G11B]
6912189 Skip list management for a write-once optical diskExpiredNov 18, 02Jun 28, 05[G11B]
6908725 Double-sided hybrid optical disk with surface topologyExpiredMar 25, 02Jun 21, 05[G11B]
6910174 Error correction code block formatExpiredJun 01, 01Jun 21, 05[H03M, G11C]
6906892 Mechanism and method for positioning data cartridge in disk driveExpiredSep 04, 01Jun 14, 05[G11B]
6901598 Tilt focus method and mechanism for an optical driveExpiredApr 24, 00May 31, 05[G11B]

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