Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810653 | Cuvette with non-flexing thermally conductive wall | Jeffrey L. Helfer, Johannes J. Porte | 1989-03-07 |
DM
David H. Middleton
Overall (1989): #122,328 of 140,708Top 90%
1
Patents 1989