Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7050553 | Communication device that provides enhanced services | Shye-Bin Chang, Stinson Mathai, Hong Xie | 2006-05-23 |
| 7003377 | Controlling cooling air intake for air cooled equipment | Shye-Bin Chang, Thomas Davis | 2006-02-21 |
| 5185781 | Automation of telephone operator assistance calls | Douglas C. Dowden, Diane E. Herr, William K. McCormick, Robert Petrelli, Richard J. Piereth +3 more | 1993-02-09 |
| 5181237 | Automation of telephone operator assistance calls | Douglas C. Dowden, Diane E. Herr, William K. McCormick, Robert Petrelli, Richard J. Piereth +3 more | 1993-01-19 |
| 5163083 | Automation of telephone operator assistance calls | Douglas C. Dowden, Diane E. Herr, Richard J. Piereth, Samuel M. Salchenberger, Chander S. Sehgal +1 more | 1992-11-10 |
| 4899375 | More efficient call handling for operator assistance calls | Thomas Michael Bauer, Robert Petrelli, Richard J. Piereth, Cyrenus M. Rubald | 1990-02-06 |
| 4620066 | Method and apparatus for sharing operators among assistance systems | William Bushnell, Palanichamy Raghavan | 1986-10-28 |