Issued Patents All Time
Showing 1–25 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D452917 | Roofing shingle | William R. Carroll, Frederick W. Sieling | 2002-01-08 |
| 6190754 | Variegated shingle and method of manufacture | Frederick W. Sieling, William R. Carroll | 2001-02-20 |
| 6105329 | Trilaminate roofing shingle | William R. Carroll, Frederick W. Sieling | 2000-08-22 |
| D426002 | Front of a roof shingle | William R. Carroll | 2000-05-30 |
| 6058670 | Laminated roofing and siding shingle | Frederick W. Sieling, William R. Carroll | 2000-05-09 |
| 5939169 | Composite roofing and siding shingle | William R. Carroll, Frederick W. Sieling | 1999-08-17 |
| D406665 | Roof covering | William R. Carroll, Frederick W. Sieling | 1999-03-09 |
| D406361 | Shingle | William R. Carroll | 1999-03-02 |
| D406362 | Section of tabbed, laminated roofing shingle | William R. Carroll, Frederick W. Sieling | 1999-03-02 |
| 5853858 | Multihued shingle sheet | — | 1998-12-29 |
| D403088 | Laminated roofing shingle | William R. Carroll, Frederick W. Sieling | 1998-12-22 |
| D403087 | Laminated roofing shingle | Frederick W. Sieling, William R. Carroll | 1998-12-22 |
| D401362 | Composite roofing shingle | William R. Carroll, Frederick W. Sieling | 1998-11-17 |
| D401363 | Laminated roofing shingle | William R. Carroll, Frederick W. Sieling | 1998-11-17 |
| D400981 | Front of a roof shingle | William R. Carroll, Frederick W. Sieling | 1998-11-10 |
| D400982 | Front of a roof shingle group | William R. Carroll | 1998-11-10 |
| D400983 | Front of a roof shingle group | William R. Carroll, Frederick W. Sieling | 1998-11-10 |
| D400268 | Folded hip and ridge roofing shingle | Frederick W. Sieling, William R. Carroll | 1998-10-27 |
| D397232 | Combined tabbed roofing and siding shingle | William R. Carroll | 1998-08-18 |
| 5776841 | Sheet felt | Charles J. Horner, Jr. | 1998-07-07 |
| 5717012 | Sheet felt | Charles J. Horner, Jr. | 1998-02-10 |
| 5676597 | Vented hip, ridge and rake composite shingle | Steven C. Bettoli | 1997-10-14 |
| D383223 | Foldable hip and ridge roofing shingle | Frederick W. Sieling, William R. Carroll | 1997-09-02 |
| 5011726 | Low temperature sealing adhesive composition | Adem Chich, Steven S. Lalwani, Steven C. Bettoli, Louis L. Grube | 1991-04-30 |
| 4923913 | Low temperature sealing adhesive composition | Adem Chich, Steven S. Lalwani, Steven C. Bettoli, Louis L. Grube | 1990-05-08 |