Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11753812 | Direct grease and/or solids collection system | Grahm Heide, Barry Gilman, Luke J. Ismert | 2023-09-12 |
| 4222851 | Recovery of asphalt shingle components by solvent extraction | Paul P. Quenin | 1980-09-16 |