HELSINGIN PUHELIN OY - HELSINGFORS TELEFON AB
Patent Owner
Stats
- 0 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Nov 29, 2001 most recent publication
Details
- 0 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 41 Total Citation Count
- May 02, 1995 Earliest Filing
- 2 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
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Recent Publications
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Recent Patents
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Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
2001/0046,228 METHOD AND ARRANGEMENT FOR INTERCONNECTING A VIRTUAL-REALITY WORLD AND THE REAL WORLD FOR THE PURPOSE OF ESTABLISHING A REAL-TIME COMMUNICATIONS CONNECTION SUCH AS A TELEPHONE CALL CONNECTIONAbandonedMar 18, 97Nov 29, 01[H04L]
5636261 Method and data structure for the control of switching centers in a telecommunications networkExpiredMay 02, 95Jun 03, 97[H04M]
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