Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7705194 | Article for assisting in toilet training | Richard Louis Underhill, Bernard Minerath, Beth Lange, Duane Krzysik, David W. Koenig +1 more | 2010-04-27 |
| 6929819 | Process for manufacturing a toilet training article containing effervescent agent | Richard Louis Underhill, Bernard Minerath, Beth Lange, Duane Krzysik, David W. Koenig +1 more | 2005-08-16 |
| 6911228 | Process for manufacturing a toilet training article | Richard Louis Underhill, Bernard Minerath, Beth Lange, Duane Krzysik, David W. Koenig | 2005-06-28 |
| 6881206 | Disposable absorbent article | Richard Louis Underhill | 2005-04-19 |
| 6726668 | Disposable absorbent article | Richard Louis Underhill | 2004-04-27 |
| 6657099 | Sheet for alerting a wearer to urination | Richard Louis Underhill, Terry Lee Adams | 2003-12-02 |
| 6657100 | Toilet training article containing an astringent agent | Richard Louis Underhill, Bernard Minerath, Beth Lange, Duane Krzysik, David W. Koenig | 2003-12-02 |
| 6576810 | Toilet training article containing an effervescent agent | Richard Louis Underhill, Bernard Minerath, Beth Lange, Duane Krzysik, David W. Koenig +1 more | 2003-06-10 |