Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D874639 | Fan blade | Darrin Niemiec, James C. Muth, William J. Carlson | 2020-02-04 |
| 10527046 | Stepped-louvre heating, ventilating and air conditioning unit used in high volume, low-speed fan | Darrin Niemiec, James C. Muth, William J. Carlson, Jeffrey William Buske | 2020-01-07 |