Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7431127 | Compact noise silencer for an air blower | Adrien de Borchgrave | 2008-10-07 |
| 6772753 | Adjustable orifice plate for exhaust ducts | Bruce Roesler, Adrien de Borchgrave, Lawrence Cook | 2004-08-10 |