Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5217928 | Hollow glass spheres | James A. Hagarman, Joseph P. Giovene, Jr. | 1993-06-08 |
| 4983550 | Hollow glass spheres | James A. Hagarman, Joseph P. Giovene, Jr. | 1991-01-08 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5217928 | Hollow glass spheres | James A. Hagarman, Joseph P. Giovene, Jr. | 1993-06-08 |
| 4983550 | Hollow glass spheres | James A. Hagarman, Joseph P. Giovene, Jr. | 1991-01-08 |