Philips and Du Pont Optical Company
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Apr 22, 1997 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 331 Total Citation Count
- Dec 16, 1987 Earliest Filing
- 16 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
- No Technology to Display
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Recent Publications
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Recent Patents
- No Recent Patents to Display
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5623472 Method and apparatus for recording signals on a record carrier, measurement method and measurement device for use in the recording method and the recording apparatus, and record carrierExpiredMar 02, 94Apr 22, 97[G11B]
5269409 Package for at least one disc provided with a central center holeExpiredSep 28, 90Dec 14, 93[B65D]
5176859 Apparatus/and method for controlling an injection molding process producing a molded partExpiredDec 02, 91Jan 05, 93[B29C]
5150113 Method and apparatus for transmitting an information signal together with data packets of related and unrelated textual information and receiving apparatus thereforExpiredMar 26, 90Sep 22, 92[H04B]
5150353 Apparatus for scanning a disc, and suction device for holding a disc flat during scanningExpiredSep 11, 91Sep 22, 92[G11B]
5146438 Method of making double-sided magneto-optical disks having reduced birefringenceExpiredMay 30, 90Sep 08, 92[G11B]
5133824 Method and device for removing a flexible product from a carrier plateExpiredDec 07, 90Jul 28, 92[B32B]
4861437 Method of manfacturing a mould and providing it with a backing and mould manufactured according to the inventionExpiredJul 21, 88Aug 29, 89[C25D]
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