Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6266418 | Encryption and authentication methods and apparatus for securing telephone communications | Matthew K. Carter, Frank A. Costantini, Ellwood McGrogan, Ronald Paraggio | 2001-07-24 |
| 4769777 | Unpredictable bit stream generator | William Bittle, Ellwood McGrogan, Paul M. Yun | 1988-09-06 |