Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7121318 | Lost pattern mold removal casting method and apparatus | John R. Grassi, George W. Kuhlman | 2006-10-17 |
| 6841120 | Dispensing apparatus and method | John R. Grassi | 2005-01-11 |
| 5735334 | Casting of light metal alloys | Thomas Leonard Sutton, Michael J. Flynn, Gary McBain | 1998-04-07 |
| 5690160 | Sealing device for an-inlet of a sand mold | Thomas Leonard Sutton, Michael J. Flynn, Gary McBain | 1997-11-25 |
| 4967827 | Method and apparatus for melting and casting metal | — | 1990-11-06 |
| 4946079 | Vented and valved pouring spout | — | 1990-08-07 |
| 4693292 | Casting of metal articles | — | 1987-09-15 |
| 4440864 | Chemically bondable foundry sand | — | 1984-04-03 |
| 4269107 | Liquid propellant/regenerative charging system bubble preventer | — | 1981-05-26 |
| 4252362 | Pickup bed cover | — | 1981-02-24 |