Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644000 | Protective device for hoofed animals | James Clark, William E. Hart | 2003-11-11 |
| 6381930 | Protective device for hoofed animals | James Clark, William E. Hart | 2002-05-07 |
| 6247230 | Impact tool head with cutting blades | William E. Hart, Jackson Andrew Robert | 2001-06-19 |
| D440837 | Impact tool | William E. Hart | 2001-04-24 |
| 4694770 | Watercraft stabilizing flotation structure | William M. Kitner | 1987-09-22 |