ConferTech International
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Nov 30, 1999 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 321 Total Citation Count
- Jun 27, 1983 Earliest Filing
- 4 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
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Top Patents (by citation)
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Recent Publications
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Recent Patents
Patent #
Title
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Issue Date
Intl Class
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
5054021 Circuit for nulling the talker's speech in a conference call and method thereofExpiredMar 06, 90Oct 01, 91[H04M, H04Q]
5034947 Whisper circuit for a conference call bridge including talker nulling and method thereforExpiredMar 06, 90Jul 23, 91[H04M, H04Q]
5029162 Automatic gain control using root-mean-square circuitry in a digital domain conference bridge for a telephone networkExpiredMar 06, 90Jul 02, 91[H04L, H04J]
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