Patents per Year
Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 5706341 | Active digit cancelling parallel dialer | John R. Zabel | 1998-01-06 | $9,333,000 |
| 4980844 | Method and apparatus for diagnosing the state of a machine | Victor Demjanenko, Andres Soom, Yong Ho. LEE, Andrei M. Reinhorn, Tsu-Teh Soong +3 more | 1990-12-25 | |
| 4803718 | Hold detecting and control circuit for a key telephone system | Victor Demjanenko, Christopher R. Caile | 1989-02-07 | |
| 4695709 | Method and apparatus for heating and controlling the temperature of ultra small volumes | Frederick Sachs, Anthony Auerbach, Richard G. McGarrigle | 1987-09-22 |