Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8752351 | Shingle with reinforced nail zone and method of manufacturing | Bert W. Elliott | 2014-06-17 |
| 8607521 | Shingle with reinforced nail zone and method of manufacturing | Bert W. Elliott | 2013-12-17 |
| 8430983 | Method of manufacturing a shingle with reinforced nail zone | Donn R. Vermilion, Stephanie A. Rinne, Michael S. Ugorek, John Scowden, Barry M. Lewis +2 more | 2013-04-30 |
| 8240102 | Shingle with reinforced nail zone and method of manufacturing | Bert W. Elliott | 2012-08-14 |
| 8181413 | Shingle with reinforced nail zone and method of manufacturing | Bert W. Elliott | 2012-05-22 |
| 8156704 | Reducing humping of stacked roofing shingles | Bert W. Elliott | 2012-04-17 |
| 8087265 | Fiberizing spinner including a radiation shield for the manufacture of high quality fibers | Patrick M. Gavin, Michael T. Pellegrin, Carmen Anthony LaTorre, Marc Alan Lucas | 2012-01-03 |
| 7841852 | Apparatus for demolding building products from a mold | Jonathan M. Verhoff, Richard W. Smith, David P. Aschenbeck, Thomas P. Copeland | 2010-11-30 |
| 7836654 | Shingle with reinforced nail zone and method of manufacturing | Bert W. Elliott | 2010-11-23 |
| 6709994 | Storm proof roofing material | David G. Miller, Carla A. Miller, Margaret M. Woodside, Frank J. Macdonald, William Huykman | 2004-03-23 |
| 6426309 | Storm proof roofing material | David G. Miller, Carla A. Miller, Margaret M. Woodside, Frank J. Macdonald, William Huykman | 2002-07-30 |
| 6095082 | Apparatus for applying granules to an asphalt coated sheet to form a pattern having inner and outer portions | Frank R. Wilgus, Frank A. Wilgus | 2000-08-01 |
| D422719 | Tab portion of a roofing shingle | Frank R. Wilgus, Frank A. Wilgus | 2000-04-11 |
| 5795622 | Method of rotating or oscillating a flow of granules to form a pattern on an asphalt coated sheet | Frank R. Wilgus, Frank A. Wilgus | 1998-08-18 |
| 5776541 | Method and apparatus for forming an irregular pattern of granules on an asphalt coated sheet | Frank R. Wilgus, Frank A. Wilgus | 1998-07-07 |
| 5766678 | Method and apparatus for applying granules to an asphalt coated sheet to form a pattern having inner and outer portions | Frank R. Wilgus, Frank A. Wilgus | 1998-06-16 |
| 5746830 | Pneumatic granule blender for asphalt shingles | Charles A. Burton, Douglas E. Boyd, Thomas D. Haubert | 1998-05-05 |
| 5624522 | Method for applying granules to strip asphaltic roofing material to form variegated shingles | Roger W. Smith | 1997-04-29 |
| 5599581 | Method for pneumatically controlling discharge of particulate material | Charles A. Burton, Douglas E. Boyd | 1997-02-04 |
| 5547707 | Method and apparatus for applying granules to strip asphaltic roofing material to form variegated shingles | Thomas D. Haubert | 1996-08-20 |
| 5520889 | Method for controlling the discharge of granules from a nozzle onto a coated sheet | Charles A. Burton, Douglas E. Boyd | 1996-05-28 |
| 5405647 | Method for applying granules to a moving coated asphalt sheet to form areas having sharp leading and trailing edges | Lawrence J. Grubka | 1995-04-11 |
| 4831746 | Method and apparatus for heating mineral fibers | Kwan Y. Kim, Yee-Chun Lee | 1989-05-23 |
| 4734996 | Method and apparatus for heating mineral fibers | Kwan Y. Kim, Yee-Chun Lee | 1988-04-05 |
| 4392879 | Method of forming glass fibers while monitoring a process condition in a spinner | Kunthiko Takeuchi | 1983-07-12 |