Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4380105 | Method for shaping, forming and assembling a highly efficient cyclone separator | John P. MacLean, J. Edward Cantwell, John D. Brown | 1983-04-19 |
| 4337068 | Methods for removing entrained solids from gases | John P. MacLean, J. Edward Cantwell, John D. Brown | 1982-06-29 |
| 4316729 | Highly efficient cyclone separator | John P. Mac Lean, J. Edward Cantwell, John D. Brown | 1982-02-23 |