Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4460967 | Electronic circuit for measuring and displaying ion concentration in fluid | James G. Tisue | 1984-07-17 |
| 4447398 | Sample container for measurement of ions of body fluids | Henry Donald Schwartz, Carl Clement, Frederick Stengel, David Hayslett | 1984-05-08 |
| 4350579 | Testing apparatus for measuring ions in fluids | Henry Donald Schwartz, Carl J. Clement, Frederick Stengel, David Hayslett | 1982-09-21 |