Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6620384 | Double handhold to prevent urine-test cheating | — | 2003-09-16 |
| 6331278 | Self-contained double handhold for preventing false urine specimens | — | 2001-12-18 |
| 5603903 | Specimen-container holder apparatus to prevent cross contamination | — | 1997-02-18 |
| 5526568 | Razor with switch for perpendicular and limited oblique angle shaving | — | 1996-06-18 |
| 5223221 | Method to prevent tampering with urine specimens and the means relating thereto | — | 1993-06-29 |
| 5133935 | Test area for prevention of specimen tampering in substance abuse testing | — | 1992-07-28 |
| 5039616 | Method for prevention of specimen tampering in substance abuse testing and test area relating thereto | — | 1991-08-13 |