Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7705194 | Article for assisting in toilet training | Richard Louis Underhill, Marsha M. Malone, Bernard Minerath, Beth Lange, Duane Krzysik +1 more | 2010-04-27 |
| 6929819 | Process for manufacturing a toilet training article containing effervescent agent | Richard Louis Underhill, Marsha M. Malone, Bernard Minerath, Beth Lange, Duane Krzysik +1 more | 2005-08-16 |
| 6576810 | Toilet training article containing an effervescent agent | Richard Louis Underhill, Marsha M. Malone, Bernard Minerath, Beth Lange, Duane Krzysik +1 more | 2003-06-10 |