Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10279399 | Milling tool and cutting insert for such a milling tool | Markus Heinloth, Jan Gruenler | 2019-05-07 |
| 9926206 | Treatment of manganese-containing materials | William F. Drinkard, Jr., William M. Nixon | 2018-03-27 |
| 9821385 | Cartridge for a cutting insert | Rudolf Ehrmann | 2017-11-21 |
| 9328400 | Treatment of manganese-containing materials | William F. Drinkard, Jr., William M. Nixon | 2016-05-03 |
| 9284627 | Process for recovering metal values from oxides of manganese-containing materials | William F. Drinkard, Jr., William M. Nixon | 2016-03-15 |
| 8814980 | Method of recovering metal values from nickel-containing ores | William F. Drinkard, Jr. | 2014-08-26 |
| 8038767 | Method of recovering metal values from ores | William F. Drinkard, Jr. | 2011-10-18 |
| 5980842 | Separation of calcium from metal compounds | William F. Drinkard, Jr. | 1999-11-09 |
| 5912402 | Metallurgical dust recycle process | William F. Drinkard, Jr. | 1999-06-15 |
| 5026530 | Method for producing copper arsenate compositions | William F. Drinkard, Jr. | 1991-06-25 |