Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5085086 | On-line liquid samplers | Robert R. Johnson | 1992-02-04 |
| 4292994 | Raw milk transfer systems | Robert R. Johnson | 1981-10-06 |
| 4269064 | On-line sampler | Robert R. Johnson | 1981-05-26 |