Issued Patents 2023
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11814585 | Multistage thermolysis method for safe and efficient conversion of e-waste materials | Ullrich H. Engel, Charles T. Ludwig, Ernest J. Zavoral, Sr. | 2023-11-14 |
| 11613704 | Multistage thermolysis method for safe and efficient conversion of carpet/rug, polymeric materials and other waste sources | Ullrich H. Engel, Charles T. Ludwig, Ernest J. Zavoral, Sr. | 2023-03-28 |