Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8688128 | Method and system for providing toll-free telematic and mobile services applications | — | 2014-04-01 |
| 8019686 | Method and system for allowing simultaneous usage of prepaid services | Charles David Caldwell, Walter H. Hawkins, Robert Sayko, Blake Lane Wattenbarger | 2011-09-13 |
| 7873151 | User-controlled personalized announcements for account-based services | — | 2011-01-18 |
| 7627529 | Method and system for allowing simultaneous usage of prepaid services | Charles David Caldwell, Walter H. Hawkins, Robert Sayko, Blake Lane Wattenbarger | 2009-12-01 |
| 7519571 | System and method for transmitting data via data networks with data conversion by a COM automatic marshaller | Roland Heymann, Heinz-Christoph Schmolka, Marcus Sebald, Thomas Talanis, Frank Volkmann | 2009-04-14 |
| 7302485 | System and method for transmitting OPC data via data networks, in particular the internet, using an asynchronous data connection | Roland Heymann, Heinz-Christoph Schmolka, Marcus Sebald, Thomas Talanis, Frank Volkmann | 2007-11-27 |
| 7254222 | Method and apparatus for implementing a pre-paid card service | Christopher P. Gilboy, Stephen Shinners | 2007-08-07 |
| 6430285 | Method and apparatus for an automated caller interaction system | Cory Gimourginas, Gary Munson | 2002-08-06 |
| 6385311 | Real-time usage-based spontaneous subscription service | Christopher P. Gilboy | 2002-05-07 |
| 6310946 | Method for interrupting a telephone call after receiving a busy signal | Elroy P. Cartwright, Walter C. Taylor | 2001-10-30 |
| 6169796 | Call rerouter method and apparatus | Duane O. Bowker, Christopher P. Gilboy | 2001-01-02 |
| 6061436 | Telephone billing system | Christopher P. Gilboy | 2000-05-09 |
| 6026151 | Network based determination of cost effective access | Christopher P. Gilboy | 2000-02-15 |
| 5859900 | Universal call access with reverse billing | Christopher P. Gilboy | 1999-01-12 |
| 5056134 | Audible logo for identifying a common carrier | Thomas A. Dunn, Christina M. Gurke, John W. Hopkins, Richard D. Nafziger | 1991-10-08 |
| 4930154 | Audible logo for identifying a common carrier | Thomas A. Dunn, Christina M. Gurke, John W. Hopkins, Richard D. Nafziger | 1990-05-29 |
| 4899375 | More efficient call handling for operator assistance calls | Richard W. Hemmeter, Robert Petrelli, Richard J. Piereth, Cyrenus M. Rubald | 1990-02-06 |
| 4776004 | Communication services method and apparatus | Thomas A. Dunn, Ross Richardson, Chun P. Tam | 1988-10-04 |