MARCONI INTELLECTUAL PROPERTY (RINGFENCE) INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 1100
 
  
 
E05C BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS 135
 
  
 
G08B SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS 193
 
  
 
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
7483440 Ring LSP topology for supporting VPNs over MPLS-based networksNov 01, 05Jan 27, 09[H04L]
D489342 VideophoneMay 09, 03May 04, 04[336-, 1403]
D489043 VideophoneMay 09, 03Apr 27, 04[336-, 1403]
6670884 Disposable wireless messaging devices and systems and methods related to sameDec 31, 99Dec 30, 03[G08B]
D478881 VideophoneMar 27, 02Aug 26, 03[336-, 1403]
6554968 Method for measuring and controlling beam current in ion beam processingSep 29, 00Apr 29, 03[C23C]
6244634 Apparatus for actuating the retaining locks of a cassetteSep 04, 97Jun 12, 01[E05C]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2004/0213,249 Cell multiplexer for variable speed network interfacesAbandonedMar 29, 01Oct 28, 04[H04L]
2004/0008,674 Digital cross connect switch matrix mapping method and systemAbandonedJul 07, 03Jan 15, 04[H04Q]
2003/0235,214 Service channel over the Ethernet inter-frame gapAbandonedMay 06, 03Dec 25, 03[H04J]
6642770 Multi-layer control interface for clock switching in a communications elementExpiredJun 06, 02Nov 04, 03[H03K]
6625404 Apparatus for controlling the amount of developer material and toner concentrationExpiredJan 24, 02Sep 23, 03[G03G]
2003/0023,892 Peer-to-peer redundancy control scheme with override featureAbandonedJul 18, 01Jan 30, 03[H03K]
2003/0002,498 Column-based reconfigurable switching matrixAbandonedJun 05, 02Jan 02, 03[H04J]
6489852 Slew controlled frame aligner for a phase locked loopExpiredJul 20, 00Dec 03, 02[H63L]
6466068 Phase locked loop having DC bias circuitryExpiredAug 30, 01Oct 15, 02[H03L]
6423915 Switch contact for a planar inverted F antennaExpiredJul 26, 01Jul 23, 02[H04B]
6404768 Method and apparatus for serving ATM packets/cellsExpiredJun 23, 98Jun 11, 02[H04Q]
2002/0042,844 Synchronized sampling on a multiprocessor backplane via a broadcast timestampAbandonedAug 01, 01Apr 11, 02[G06F]
2002/0042,870 System and method for implementing a redundant data storage architectureAbandonedAug 03, 01Apr 11, 02[G06F]
6362670 Controlled slew reference switch for a phase locked loopExpiredAug 04, 00Mar 26, 02[H03L]
6313708 Analog phase locked loop holdoverExpiredJul 26, 00Nov 06, 01[H03L]
6304115 Phase locked loop having DC bias circuitryExpiredJul 19, 00Oct 16, 01[H03L]
6208652 Increment schedulerExpiredJun 13, 97Mar 27, 01[H04L]
5726506 Hot insertion power arrangementExpiredJun 05, 95Mar 10, 98[H01B]
5127845 Insulation displacement connector and block thereforExpiredApr 27, 90Jul 07, 92[H01R]
5093887 Sliding cable tray with cable pivot armExpiredSep 28, 90Mar 03, 92[G02B]

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