Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10119707 | Telescoping downdraft ventilator alignment assembly | William H. Punzel, Christopher R. Irgens | 2018-11-06 |
| 9897329 | Cooktop with downdraft ventilator | John J. Huber, Christopher R. Irgens, Gerhart S. Langenbach | 2018-02-20 |