Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6361851 | Composite roofing shingle | Frederick W. Sieling | 2002-03-26 |
| D452917 | Roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 2002-01-08 |
| 6190754 | Variegated shingle and method of manufacture | Alfredo A. Bondoc, Frederick W. Sieling | 2001-02-20 |
| 6105329 | Trilaminate roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 2000-08-22 |
| D426002 | Front of a roof shingle | Alfredo A. Bondoc | 2000-05-30 |
| 6058670 | Laminated roofing and siding shingle | Frederick W. Sieling, Alfredo A. Bondoc | 2000-05-09 |
| 5939169 | Composite roofing and siding shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1999-08-17 |
| D406665 | Roof covering | Alfredo A. Bondoc, Frederick W. Sieling | 1999-03-09 |
| D406361 | Shingle | Alfredo A. Bondoc | 1999-03-02 |
| D406362 | Section of tabbed, laminated roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1999-03-02 |
| 5860263 | Thickened reinforced roofing shingle | Frederick W. Sieling | 1999-01-19 |
| D403087 | Laminated roofing shingle | Frederick W. Sieling, Alfredo A. Bondoc | 1998-12-22 |
| D403088 | Laminated roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1998-12-22 |
| D401362 | Composite roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1998-11-17 |
| D401363 | Laminated roofing shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1998-11-17 |
| D400981 | Front of a roof shingle | Alfredo A. Bondoc, Frederick W. Sieling | 1998-11-10 |
| D400982 | Front of a roof shingle group | Alfredo A. Bondoc | 1998-11-10 |
| D400983 | Front of a roof shingle group | Alfredo A. Bondoc, Frederick W. Sieling | 1998-11-10 |
| D400268 | Folded hip and ridge roofing shingle | Frederick W. Sieling, Alfredo A. Bondoc | 1998-10-27 |
| D397232 | Combined tabbed roofing and siding shingle | Alfredo A. Bondoc | 1998-08-18 |
| D383223 | Foldable hip and ridge roofing shingle | Frederick W. Sieling, Alfredo A. Bondoc | 1997-09-02 |
| 5209052 | Cutting and mulching blade assembly | — | 1993-05-11 |
| 4835929 | Laminated roofing hip | Alfredo A. Bondoc, Bobbie J. Lloyd | 1989-06-06 |
| 4527073 | Shielded electrical cable system | — | 1985-07-02 |
| 4508149 | Log conveying apparatus | — | 1985-04-02 |