Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D597739 | Six sided food container | Lawrence M. Knutson, Sheryl F. Knutson | 2009-08-11 |
| D597310 | Eight sided food container | Lawrence M. Knutson, Sheryl F. Knutson | 2009-08-04 |
| D597311 | Seven sided food container | Lawrence M. Knutson, Sheryl F. Knutson | 2009-08-04 |
| D586124 | Eight sided container | Lawrence M. Knutson, Sheryl F. Knutson | 2009-02-10 |