Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5395430 | Electrostatic precipitator assembly | Dale Lundgren, Virgil A. Marple | 1995-03-07 |
| 4631178 | Method of removing boric oxide from flue gases | Charles F. Rapp | 1986-12-23 |