Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10414676 | Method and system for providing purified water | Lee Underwood, John A. Walker | 2019-09-17 |
| 9665852 | Water purification unit | Lee Underwood, Mathew Hammond | 2017-05-30 |
| 9611160 | Wastewater treatment apparatus and method | Lee Underwood, Paul Whitehead, Jean-Pierre Spanu, James Keary | 2017-04-04 |
| 8888923 | Component, method and system of sanitising a water purification apparatus and/or a distribution apparatus | Lee Underwood | 2014-11-18 |
| 7938909 | Automated sanitation | Lee Underwood | 2011-05-10 |