Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7553223 | Coin sorter with external strip separator | Mark E. Ristvedt | 2009-06-30 |
| 6758736 | Coin or token sorting apparatus | Mark E. Ristvedt | 2004-07-06 |
| 6017270 | Coin sorter | Mark E. Ristvedt | 2000-01-25 |
| 5538468 | Coin sorting apparatus with rotating disc | Mark E. Ristvedt | 1996-07-23 |
| 5297986 | Coin sorting apparatus with rotating disc | Mark E. Ristvedt | 1994-03-29 |
| 5176565 | Coin sorting apparatus with rotating disc | Mark E. Ristvedt | 1993-01-05 |
| 5104353 | Coin sorting apparatus with rotating disc | Mark E. Ristvedt | 1992-04-14 |
| 5080633 | Coin sorting apparatus with rotating disc | Mark E. Ristvedt | 1992-01-14 |
| 5022889 | Coin sorter | Mark E. Ristvedt | 1991-06-11 |
| 4966570 | Coin sorting apparatus for sorting coins of selected denominations | Mark E. Ristvedt | 1990-10-30 |
| 4863414 | Coin sorter | — | 1989-09-05 |
| 4765464 | Wrapped coin roll and method of forming same | — | 1988-08-23 |
| 4731043 | Coin sorter | Mark E. Ristvedt | 1988-03-15 |
| 4718218 | Coin wrapping mechanism | — | 1988-01-12 |
| 4681128 | Coin sorter | Mark E. Ristvedt | 1987-07-21 |
| 4564036 | Coin sorting system with controllable stop | — | 1986-01-14 |
| 4549561 | Coin handling machine | Roy B. Johnson | 1985-10-29 |
| 4531531 | Coin handling machine | Roy B. Johnson | 1985-07-30 |
| 4444212 | Coin handling machine | Roy B. Johnson | 1984-04-24 |
| 4234003 | Coin handling machine | Roy B. Johnson | 1980-11-18 |