Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6148071 | Method and apparatus for providing calling features independent of the numbering plan | Walter Paul Zahray | 2000-11-14 |
| 5894595 | Personal mobile communication system | Mark Jeffrey Foladare, Shelley B. Goldman, Susanne Watson Moroses, Nancy Murray, David Phillip Silverman +1 more | 1999-04-13 |
| 5771282 | Method for billing multiple services on a single account | — | 1998-06-23 |
| 5675607 | Method and apparatus for facilitating the making of card calls | Thomas Alesio, Monowar Hossain, Dooyong Lee | 1997-10-07 |
| 5633922 | Process and apparatus for restarting call routing in a telephone network | Katherine G. August | 1997-05-27 |
| 5521966 | Method and system for mediating transactions that use portable smart cards | Carlos A. Perea, Yao-Chung Tsao | 1996-05-28 |
| 5450479 | Method and apparatus for facilitating the making of card calls | Thomas Alesio, Monowar Hossain, Dooyong Lee | 1995-09-12 |
| 5444774 | Interactive queuing sytem for call centers | — | 1995-08-22 |
| 5329581 | Target area calling system | Barbara I. Gaechter, Paramdeep S. Sahni, Susan M. Zoccolillo | 1994-07-12 |
| 5311583 | International priority calling system with callback features | Diane R. Leighton, Paramdeep S. Sahni, Walter Paul Zahray | 1994-05-10 |
| 5311572 | Cooperative databases call processing system | Om Prakash Mahajan | 1994-05-10 |
| 5282243 | Recording of automatic number identification to identify lost customers | Hassan Dabbaghi, Robert Finberg, Lisa C. Giulianelli, Angela R. Gore, Nadine K. Grasty +4 more | 1994-01-25 |
| 5003584 | Method and apparatus for the billing of value-added communication calls | Irving Benyacar, Elizabeth V. Courte, Thomas P. Howe, David D. Kaufman, James R. Magura +4 more | 1991-03-26 |
| 4555594 | Telephone interexchange signaling protocol | Thomas V. Greene, Frederick W. Idenden, Kenneth L. Moeller, Robert M. Musen, John F. O'Hara | 1985-11-26 |