Issued Patents 2019
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10512866 | Filter housing for filter fan | Seng Chang, Douglas L. Neuenfeldt, William J. Nepsha, Richard Raisanen, Michael Koehler +3 more | 2019-12-24 |
| D859631 | Fan shroud | Seng Chang, Michael Springstead | 2019-09-10 |
| D851742 | Support for a fan shroud | Seng Chang, Michael Springstead | 2019-06-18 |