Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857167 | Oxygen-stable substituted ferrocene reference electrode | James K. Bashkin | 1989-08-15 |
| 4818365 | Solid state indicator electrode and method of making same | John E. Heider | 1989-04-04 |