Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5377959 | Apparatus for improving service life of thermite rail welds | Gordon O. Besch | 1995-01-03 |
| 5306361 | Method for improving service life of rail welds by aluminothermic heat treatment | Gordon O. Besch, Mark A. Swartz, Frank Kuster, Hans Guntermann | 1994-04-26 |
| 5215139 | Method and mold for aluminothermic welding of rails | Mark A. Swartz, THOMAS WOOLEY | 1993-06-01 |
| 4856170 | Rebuilding worn hammer mill hammers | — | 1989-08-15 |
| 4536237 | Aluminothermic reduction reaction mixture | — | 1985-08-20 |
| 4398588 | Method of making a rim-stabilized steel ingot | Paul E. Hamill, Jr. | 1983-08-16 |