Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4217658 | Process control system that controls its outputs according to the results of successive analysis of the vertical input columns of a hypothetical ladder diagram | Donald E. Henry, Thomas A. Murrell, Marvin H. Schilt | 1980-08-12 |