Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4870566 | Scannerless message concentrator and communications multiplexer | Ronald J. Cooper, Mario A. Marsico, Richard Colbert Matlack, Jr., Robert L. Smith | 1989-09-26 |
| 4837677 | Multiple port service expansion adapter for a communications controller | Gilbert S. Burrus, Jr., Ronald J. Cooper, Michael R. Marr, Mario A. Marsico, Paul D. Sullivan | 1989-06-06 |