Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D385206 | Sample container for test purposes | — | 1997-10-21 |
| D335464 | Analytical instrument for testing parameters of pool water | — | 1993-05-11 |
| D333630 | Instrument for testing liquid samples | — | 1993-03-02 |
| D329024 | Color disc for an analytical instrument | — | 1992-09-01 |
| RE33487 | Water treatment and soil testing | — | 1990-12-11 |
| 4775513 | Water treatment and soil testing | — | 1988-10-04 |