Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8028659 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Jeff Reed Greason, Karl T. Ulrich, Nathan Ulrich +1 more | 2011-10-04 |
| 7997230 | Manual litter box | Alan J. Cook, Leon Helfet, Kevin John Augustyniak | 2011-08-16 |