Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6960303 | Alum pellets | Charles R. Landis, Danny Oaks, Ricky Rothermel, Robert Harvey | 2005-11-01 |
| 6881346 | Methods of treating phosphate in a body of water | Charles R. Landis | 2005-04-19 |