Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8539973 | Pressure-actuated normally open fluid valve | — | 2013-09-24 |
| 7264731 | Systems and methods with treated water | — | 2007-09-04 |
| 6968669 | Flexible packaging | Alfred A. Schroeder | 2005-11-29 |
| 6712342 | Hollow fiber carbonation | — | 2004-03-30 |
| 6579447 | Self-cleaning pre-filter system | Michael T. Romanyszyn | 2003-06-17 |
| 6423212 | Microbial resistant water purification and collection system | — | 2002-07-23 |
| 5927099 | Recirculating water purification system | — | 1999-07-27 |
| 5256279 | Liquid storage system with unpressurized reservoir engagable with level sensors | Hal P. Voznick | 1993-10-26 |
| 5004535 | Water purification system | Thomas C. Barnes | 1991-04-02 |