DIGITAL AUDIO DISC CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM3154
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 364
 
  
 
G11B INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER 3135
 
  
 
B29C SHAPING OR JOINING OF PLASTICS; SHAPING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL; AFTER- TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING 2123
 
  
 
B65D CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES 296
 
  
 
B25J MANIPULATORS; CHAMBERS PROVIDED WITH MANIPULATION DEVICES 157
 
  
 
B65C LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES 119
 
  
 
B66B ELEVATORS; ESCALATORS OR MOVING WALKWAYS 127
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 1205
 
  
 
H04N PICTORIAL COMMUNICATION, e.g. TELEVISION 1241

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
6533100 Direction change interface conveyorMay 01, 01Mar 18, 03[B65G]
6500512 Apparatus and method for use in the manufacture of multiple layer optical discsFeb 06, 01Dec 31, 02[B32B]
6254716 Apparatus and method for use in the manufacture of multiple layer optical discOct 25, 99Jul 03, 01[B29C, B32B]
5979606 Conveyor elevatorDec 23, 97Nov 09, 99[B66B]
5927935 Part transfer apparatusMay 18, 98Jul 27, 99[B25J]
5930215 CD-Rom with machine-readable I.D. codeFeb 10, 98Jul 27, 99[G11B]
5909805 Label assembly for package sleeve accommodating a storage media disc and method for sealing a package sleeveDec 23, 97Jun 08, 99[B65D]
5893998 Boundary apparatus for optical component moldingFeb 21, 97Apr 13, 99[B29C]
5885406 Adjustable dispensing grid for labeler and method of applying a labelJan 13, 97Mar 23, 99[B65C, B32B]
5805549 Using defect read from a disk to represent a machine-readable codeApr 02, 96Sep 08, 98[G11B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
7314536 Disc pairing in optical disc replicationExpiredOct 14, 04Jan 01, 08[B29C]
6629654 Secure disposal system for articlesExpiredJun 21, 01Oct 07, 03[B02C]
6575389 Rotating cutter systemExpiredJun 21, 01Jun 10, 03[B02C]
6394257 Bidirectional conveyor elevatorExpiredMay 31, 00May 28, 02[B65G]
6374736 Screen printing frame scraperExpiredAug 21, 00Apr 23, 02[B41F]
6355896 Apparatus and method for stacking optical discsExpiredMar 31, 00Mar 12, 02[B07C]
6257932 Keyed electrical connectorExpiredMay 01, 00Jul 10, 01[H01R]
6085429 Optical disc spindle straightness testing apparatus and methodExpiredOct 20, 98Jul 11, 00[G01B]
6044964 Multidirection belt conveyorExpiredFeb 26, 98Apr 04, 00[B65G]
5905709 Mass production of multisession discs for playback on audio-only and CD-ROM playersExpiredJul 10, 97May 18, 99[G11B]
5150363 Serial input/output multiplexing apparatusExpiredAug 11, 89Sep 22, 92[H04L, H04B, H04J]

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