Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5160979 | Test piece coloration comparative decision unit | Hiroyuki Ota, Takao Terada, Bernd G. Herpichboehm, George H. Sierra, Robert B. Summers | 1992-11-03 |
| 5160980 | Test piece coloration comparative decision unit | Bernd G. Herpichboehm, George H. Sierra, Robert B. Summers | 1992-11-03 |
| 5011290 | Test sample color comparison device | Takao Terada, Hiroyuki Ota, Shigeru Makita, Bernd G. Herpichboehm, George H. Sierra +1 more | 1991-04-30 |
| 4871258 | Color test meter | Bernd G. Herpichboehm, George H. Sierra, Robert B. Summers | 1989-10-03 |
| 4797256 | Registration device for blood test strips | — | 1989-01-10 |