Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217525 | Reduced lead set device and method for detecting acute cardiac ischemic conditions | Douglas K. Medema, Tae H. Joo, David R. Hampton, Robert Niskanen | 2001-04-17 |
| 6171256 | Method and apparatus for detecting a condition associated with acute cardiac ischemia | Tae H. Joo, David R. Hampton, Douglas K. Medema, Robert Niskanen | 2001-01-09 |
| 4818976 | Device for monitoring hydrocarbons in groundwater | Charles W. Gardner, Jr. | 1989-04-04 |
| 4258230 | Party line telephone system | Herbert Heller | 1981-03-24 |