Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9234480 | Isothermal machines, systems and methods | — | 2016-01-12 |
| 6240088 | Method for two-stage data transmission | Andrei Godoroja, Randy T. Tkatch | 2001-05-29 |
| 5732357 | Selective simulcast paging system | Riley S. Hoyt | 1998-03-24 |
| 5559859 | Paging system that allows caller/subscriber interconnection | Susan W. S. Dai, Brian Laird, Randy T. Tkatch, Sonny R. Bettis, Marc Fitzhugh +3 more | 1996-09-24 |
| 5307399 | Paging system that allows caller/subscriber interconnection | Susan W. S. Dai, Brian Laird, Randy T. Tkatch | 1994-04-26 |