Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6337014 | Nonsolvent, sealed septum connection for a water treatment cartridge | Marcus Donald McLeod | 2002-01-08 |
| 4956086 | Filter cartridge with a lugged concentric closure portion | Jack W. Thomsen, John W. Tadlock | 1990-09-11 |
| 4857189 | Filter cartridge with a lugged concentric closure portion | Jack W. Thomsen, John W. Tadlock | 1989-08-15 |
| 4770770 | Water supply system using reverse osmosis unit for treatment of water supply | Dale A. Squier, John W. Tadlock | 1988-09-13 |
| 4759474 | Beverage dispensing system and filter cartridge therefor | John W. Tadlock, Gregory L. Johnson | 1988-07-26 |
| 4645601 | Quick change reverse osmosis assembly | Jack W. Thomsen | 1987-02-24 |
| 4548227 | Chemical feeder device | John W. Tadlock, Dean Jarog | 1985-10-22 |