Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5308946 | Induction heating apparatus and method for heating metal strips and slabs | — | 1994-05-03 |
| 5245148 | Apparatus for and method of heating thick metal slabs | — | 1993-09-14 |
| 5109653 | Sealing head including an induction heating coil | Charles S. Kubis, John Walter, Donald J. Roth | 1992-05-05 |
| 4856097 | Apparatus for induction heating of electrically conductive metal wire and strip | — | 1989-08-08 |
| 4853510 | Induction heating coil | Donald J. Roth | 1989-08-01 |
| 4761527 | Magnetic flux induction heating | — | 1988-08-02 |
| 4757175 | Induction heating coil | Donald J. Roth | 1988-07-12 |
| 4754113 | Induction coil heating unit for heat sealing closures to containers | Donald J. Roth | 1988-06-28 |
| 4740663 | Transverse flux induction heating unit | Donald J. Roth | 1988-04-26 |
| 4707213 | Induction heating unit for heat bonding a lid having a metallic layer to a container | Donald J. Roth | 1987-11-17 |
| 4539456 | Induction heating system and method of bonding container end unit to body utilizing the same | — | 1985-09-03 |
| 4519859 | Heating system for and method of finally bonding container end unit to body | Donald J. Roth, Charles S. Kubis, John Walter | 1985-05-28 |