Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D736114 | Star | — | 2015-08-11 |
| D683257 | Ornament | — | 2013-05-28 |
| 4594940 | Fan for ventilation | David W. Wolbrink | 1986-06-17 |
| 4510851 | Ventilation fan | Joseph R. Sarnosky, David W. Wolbrink | 1985-04-16 |