Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4754640 | Apparatus and method for determining the viscoelasticity of liquids | Frank J. Matusik, Donald W. Nelson, John L. Schrag | 1988-07-05 |
| 4524610 | In-line vibratory viscometer-densitometer | Frank J. Matusik, Donald W. Nelson | 1985-06-25 |
| 4312577 | Motor vehicle map display system | — | 1982-01-26 |
| 4299119 | Incremental rotary viscometer | Frank J. Matusik, Donald W. Nelson | 1981-11-10 |