Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4634330 | Apparatus for introducing solids into a solids upflow vessel | Steven Hordinski, Dale R. Severns, Howard W. Hooker | 1987-01-06 |
| 4592264 | Violin family instruments with integrating tonal arm | — | 1986-06-03 |