Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5473676 | Telephone handset interface for automatic switching between voice and data communications | Kenneth L. Frick, Michael M. Winseck, Jr. | 1995-12-05 |
| 5444770 | Telephone handset interface for automatic switching between voice and data communications | Richard A. Davis, Kenneth L. Frick, James Nowack | 1995-08-22 |
| 5146207 | Secure field monitoring device for use in electronic house arrest monitoring system | Daniel L. Henry, Joseph DeSimone | 1992-09-08 |