Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8062142 | Collaborative play toy | Brian D. Lovgren, Paul J. Danforth | 2011-11-22 |
| 7222557 | Ratcheting tool driver | Peng Li, Zhihong Fu, Kean-Tuan Tan | 2007-05-29 |
| 7159252 | Folding sink | Peter C. Hill | 2007-01-09 |
| 7118514 | Playground equipment | Joshua Rothacker, Brian D. Lovgren | 2006-10-10 |
| D504000 | Portable sink with foldable faucet | Peter C. Hill | 2005-04-12 |
| D489155 | Outdoor station with sink and foldable faucet | — | 2004-04-27 |
| 6611972 | Sink with foldable faucet assembly and multiple-purpose support structure | Peter C. Hill | 2003-09-02 |
| D474900 | Convertible table and easel | — | 2003-05-27 |
| D461880 | Wall-mounted sink with foldable faucet | — | 2002-08-20 |
| D461941 | Serving cart with sink and foldable faucet | Peter C. Hill | 2002-08-20 |
| D426586 | Toy beauty center | — | 2000-06-13 |
| 6044766 | Playground carriage | Russell L. Keeler | 2000-04-04 |
| D407569 | Support stool | David A. Bradshaw | 1999-04-06 |
| 5816167 | Playground carriage | Paul J. Danforth, Daniel T. York, Russell L. Keeler | 1998-10-06 |
| 5468199 | Sliding-handgrip amusement apparatus | Russell L. Keeler | 1995-11-21 |
| 5443012 | Playground carriage | Russell L. Keeler | 1995-08-22 |
| 5156507 | Expansible fastening device | — | 1992-10-20 |