Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9301492 | Method of making clumping cellulosic animal litter | Robert V. Wiedenhaft | 2016-04-05 |
| 5970916 | Clumping cellulosic animal litter | Robert V. Wiedenhaft | 1999-10-26 |
| 5730371 | Delumper | Paul A. Dongieux, Jr., Steven J. Anderson | 1998-03-24 |
| 5019564 | Non-clay agricultural granule | H. Edward Lowe, Clayton C. Nelson | 1991-05-28 |
| 4734393 | Non-clay oil and grease absorbent | H. Edward Lowe, Clayton C. Nelson | 1988-03-29 |
| 4721059 | Nonclay catbox filler | H. Edward Lowe | 1988-01-26 |