SMART TONE, INC.
Patent Owner
Stats
- 1 US PATENTS IN FORCE
- 0 US APPLICATIONS PENDING
- Jan 11, 2000 most recent publication
Details
- 1 Issued Patents
- 0 Issued in last 3 years
- 0 Published in last 3 years
- 921 Total Citation Count
- Aug 05, 1994 Earliest Filing
- 7 Expired/Abandoned/Withdrawn Patents
Patent Activity in the Last 10 Years
Technologies
Intl Class
Technology
Matters
Rank in Class
Top Patents (by citation)
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Recent Publications
- No Recent Publications to Display
Recent Patents
Patent #
Title
Filing Date
Issue Date
Intl Class
5745555 System and method using personal identification numbers and associated prompts for controlling unauthorized use of a security device and unauthorized access to a resourceJun 07, 96Apr 28, 98[H04M]
Expired/Abandoned/Withdrawn Patents
Patent #
Title
Status
Filing Date
Issue/Pub Date
Intl Class
6014441 Method and system for generation of tone signals over a transmission channelExpiredNov 25, 97Jan 11, 00[H04M]
5949874 Method and system for compensating for signal deviations in tone signals over a transmission channelExpiredNov 25, 97Sep 07, 99[G10L]
5825871 Information storage device for storing personal identification informationExpiredJun 07, 96Oct 20, 98[H04M]
5732133 System and method for selecting and generating telephone access numbers for limiting access to a telephone serviceExpiredJun 07, 96Mar 24, 98[H04M]
Top Inventors for This Owner
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