Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4825616 | Roofing shingle | Alfredo A. Bondoc, Stanley P. Frankoski | 1989-05-02 |
| 4543158 | Sheet type felt | Alfredo A. Bondoc, Eugene J. Flood | 1985-09-24 |
| 4513045 | Sheet type felt | Alfredo A. Bondoc, Eugene J. Flood | 1985-04-23 |
| 4472243 | Sheet type roofing | Alfredo A. Bondoc, Eugene J. Flood | 1984-09-18 |