Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12227426 | Process for recovery of lithium from a geothermal brine | John L. Featherstone, Michael J. Garska, Charles R. Marston | 2025-02-18 |
| 10604414 | System and process for recovery of lithium from a geothermal brine | John L. Featherstone, Michael J. Garska, Charles R. Marston | 2020-03-31 |
| 4938495 | Trailer hitch positioning apparatus | Donald R. Beasley | 1990-07-03 |
| 4852901 | Trailer hitch positioning apparatus | Donald R. Beasley | 1989-08-01 |