Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5187710 | Method and apparatus for the billing of value-added communications calls | Nga V. Chau, Reuben D. Hauptman, Barbara Joanne Kittredge, Pamela J. Lauber, Patricia Lindblad | 1993-02-16 |
| 5003584 | Method and apparatus for the billing of value-added communication calls | Irving Benyacar, Elizabeth V. Courte, Albert Friedes, Thomas P. Howe, James R. Magura +4 more | 1991-03-26 |