Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411847 | Process for surface modified hollow microspheres | Bruce D. Spivack, James P. Cunnion, Jr. | 1983-10-25 |
| 4380459 | Method for reducing the amount of coal dust in the environment surrounding coal mining | — | 1983-04-19 |
| 4340642 | Surface modified hollow microspheres | Bruce D. Spivack, James P. Cunnion, Jr. | 1982-07-20 |