Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6506048 | Apparatus and method for transferring heat treated parts | H. Kenneth Staffin, Marc Glasser, James A. Bickford | 2003-01-14 |
| 6253830 | Apparatus and method for sand core debonding and heat treating metal castings | Herbert K. Staffin, Robert B. Roaper | 2001-07-03 |
| 4779163 | Method and apparatus for controlling electrostatic charges in fluidized beds | Joseph E. Japka, Robert B. Roaper | 1988-10-18 |
| 4519718 | Method and apparatus for thermal testing | H. Kenneth Staffin, Robert B. Roaper | 1985-05-28 |