Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4879517 | Temperature compensation for potentiometrically operated ISFETS | Earl W. Shaffer, Jr. | 1989-11-07 |
| 4851104 | Instrument for potentiometric electrochemical measurements | Earl W. Shaffer, Jr. | 1989-07-25 |