Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5987664 | Invalid hoists | John Greaves | 1999-11-23 |
| D403828 | Hoist for disabled persons | John Greaves | 1999-01-05 |
| 5845348 | Invalid hoist | Robert J. Dunn | 1998-12-08 |
| 5784729 | Invalid hoist | Robert J. Dunn, Michael George Gill, John Greaves, Richard Ian Lees | 1998-07-28 |
| D376886 | Invalid hoist | Robert J. Dunn, Michael George Gill, John Greaves, Richard Ian Lees | 1996-12-24 |