Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D368615 | Pillow | Herbert K. Johnston, Deborah A. Kennedy, Berend H. Zylstra | 1996-04-09 |
| D367390 | Pillow | Herbert K. Johnston, Deborah A. Kennedy, Berend H. Zylstra | 1996-02-27 |
| D367391 | Pillow | Herbert K. Johnston, Deborah A. Kennedy, Berend H. Zylstra | 1996-02-27 |
| D352634 | Mattress pad | — | 1994-11-22 |