Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5275553 | Apparatus for combustion, pollution and chemical process control | Michael B. Frish, Joseph Morency, Stephen Allen Johnson | 1994-01-04 |
| 5112215 | Apparatus for combustion, pollution and chemical process control | Michael B. Frish, Joseph Morency, Stephen Allen Johnson | 1992-05-12 |