Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D368615 | Pillow | Herbert K. Johnston, Berend H. Zylstra, Steven D. Canning | 1996-04-09 |
| D367390 | Pillow | Herbert K. Johnston, Berend H. Zylstra, Steven D. Canning | 1996-02-27 |
| D367391 | Pillow | Herbert K. Johnston, Berend H. Zylstra, Steven D. Canning | 1996-02-27 |