Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4968492 | Device for feeding fluidizing gas to the openings in a grid for supporting a bed of particles to be fluidized | Paul V. Witwicki | 1990-11-06 |
| 4880311 | Apparatus for supplying unclogging gas to fluidized bed apparatus | Paul W. Witwicki | 1989-11-14 |
| 4648330 | Apparatus for injecting fluidization gas | — | 1987-03-10 |