Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12103874 | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water | Steve D. Sitkiewitz, Lee W. Frederick | 2024-10-01 |
| 11839853 | Osmotic pressure assisted reverse osmosis membrane and module | Qiang Wei, Elliott Baker, John Webley | 2023-12-12 |
| 11612860 | Osmotic fluid purification and draw compounds thereof | Shaobin Fan, John Webley | 2023-03-28 |
| 11198097 | Osmotic pressure assisted reverse osmosis process and method of using the same | Qiang Wei, John Webley, Elliott Baker | 2021-12-14 |
| 10550020 | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water | Steve D. Sitkiewitz, Lee W. Frederick | 2020-02-04 |
| 10343939 | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water | Steve D. Sitkiewitz, Lee W. Frederick | 2019-07-09 |
| 9676639 | Recovery of retrograde soluble solute for forward osmosis water treatment | Steve D. Sitkiewitz, John Webley | 2017-06-13 |
| 9216917 | Recovery of retrograde soluble solute for forward osmosis water treatment | Steve D. Sitkiewitz, John Webley | 2015-12-22 |
| 8652336 | Ultraviolet light activated oxidation process for the reduction of organic carbon in semiconductor process water | Steve D. Sitkiewitz, Lee William Fredrick | 2014-02-18 |
| 6902653 | Apparatus and method for photocatalytic purification and disinfection of fluids | Lee W. Frederick, Steve D. Sitkiewitz | 2005-06-07 |
| 6524447 | Apparatus and method for photocatalytic purification and disinfection of water and ultrapure water | Lee W. Frederick | 2003-02-25 |