Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5079956 | Testing of viscoelastic materials | Henri A. G. Burhin, Willy A. G. Spreutels | 1992-01-14 |
| 4552025 | Multifunction processability testing method and apparatus | Robert I. Barker, Henry Pawlowski | 1985-11-12 |
| 4229970 | Method and apparatus for measuring the rheological properties of an extrudable material | Robert I. Barker, Patrick F. Rice | 1980-10-28 |