Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8536110 | Molded solid industrial cleaning block | Brad Drost, Walter Drost, Jr. | 2013-09-17 |
| 8318655 | Method of manufacturing molded solid industrial cleaning block | Brad Drost, Walter Drost, Jr. | 2012-11-27 |