Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11148089 | Rectangular outlet honeycomb structures, particulate filters, extrusion dies, and method of manufacture thereof | Douglas Munroe Beall, Achim Karl-Erich Heibel, Kenneth Richard Miller, Pushkar Tandon, David J. Thompson | 2021-10-19 |