Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5868320 | Centrally installed cleaning/washing system for buildings | Donald R. Anderson | 1999-02-09 |
| 5749526 | Centrally installed cleaning/washing system for buildings | Donald R. Anderson | 1998-05-12 |