Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508610 | Electrical conductivity tester and methods thereof for accurately measuring time-varying and steady state conductivity using phase shift detection | Ajeet Rohatgi, David R. Hertling | 1996-04-16 |
| 5495170 | Time varying electrical conductivity tester using frequency discrimination and power detector and methods thereof | Ajeet Rohatgi, David R. Hertling | 1996-02-27 |
| 4874711 | Method for altering characteristics of active semiconductor devices | David W. Hughes, David R. Hertling | 1989-10-17 |
| 4820657 | Method for altering characteristics of junction semiconductor devices | David W. Hughes | 1989-04-11 |