Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7950412 | Non-removable refill restrictor apparatus | Jack Nguyen | 2011-05-31 |
| 6719294 | Bathroom fixture gasket apparatus and method | Jack Nguyen, Steven E. Maple, Troy Bell, Kevin J. Doverspike | 2004-04-13 |
| 6662379 | Toilet cleaning dispenser system with removable cartridge | Jack Nguyen, Farid Maiwandi, Dan Lodhe, Troy Bell | 2003-12-16 |
| D476057 | Dispenser and chemical cartridge combination | Jack Nguyen, Farid Maiwandi, Dan Lohde, Troy Bell | 2003-06-17 |
| 6354326 | Toilet fill valve with improved noise abatement | Tuan Le | 2002-03-12 |