Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8166920 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2012-05-01 |
| 8166918 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2012-05-01 |
| 8166919 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2012-05-01 |
| 8161908 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2012-04-24 |
| 8028659 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2011-10-04 |
| 7762213 | Self-cleaning litter box | Alan J. Cook, Kristin William Grube, Thomas E. Devlin, Karl T. Ulrich, Nathan Ulrich +1 more | 2010-07-27 |
| 5748025 | Method and apparatus for providing high voltage with a low voltage CMOS integrated circuit | Yong-Gee Ng | 1998-05-05 |