Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12285798 | Tool-less method for making molds, cores, and temporary tools | John P. Biel, Jr., Brandon Michael Welker, Thomas A. Cobett, Julie Ruth Nimer | 2025-04-29 |
| 11123789 | Method for inorganic binder castings | Thomas A. Cobett, Jiten Shah | 2021-09-21 |
| 8372222 | Method of producing locally austempered ductile iron | George D. Pfaffmann, Robert Madeira, Christopher Allen Bixler | 2013-02-12 |
| 7506705 | Method of producing downhole drill bits with integral carbide studs | Kristin Brandenberg, Kathy L. Hayrynen, Gerald Wurtsmith | 2009-03-24 |
| 6799648 | Method of producing downhole drill bits with integral carbide studs | Kristin Brandenberg, Kathy L. Hayrynen, Gerald Wurtsmith | 2004-10-05 |
| 5849114 | Method of forming plate-type track shoe | Kathy L. Hayrynen, John B. Wagner | 1998-12-15 |
| 5253698 | Combination sand cleaning and heat treating apparatus for sand casted metallic parts and method | William R. Keough, Bela V. Kovacs | 1993-10-19 |
| 5246510 | Method for producing a selectively surface hardened cast iron part | Bela V. Kovacs | 1993-09-21 |
| 5139579 | Method for preparing high silicon, low carbon austempered cast iron | Bela V. Kovacs, Douglas M. Pramstaller | 1992-08-18 |
| 5064478 | Method and apparatus for surface austempering of cast iron parts | Bela V. Kovacs, Douglas M. Pramstaller | 1991-11-12 |
| 5043028 | High silicon, low carbon austemperable cast iron | Bela V. Kovacs, Douglas M. Pramstaller | 1991-08-27 |
| 4949774 | Expendable cap device to minimize dross inclusions in the vacuum casting process | William R. Keough, Bela V. Kovacs | 1990-08-21 |