Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5680443 | Smart messages and smart macros for telecommunications relay service (TRS) and operator services for deaf (OSD) | Leonard R. Kasday, Vinay Kundaje, Stephen John Lomax, David Eugene Schulz | 1997-10-21 |
| 5463665 | Relaying of messages between hearing impaired callers using keyboards and other callers | David Eugene Schulz | 1995-10-31 |