Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688882 | Use of an additive and paving grade asphalt in shingle coating asphalt composition manufacture | Robert E. Quinn, Laurand Henry Lewandowski | 2017-06-27 |
| 9574350 | Sealant composition for releasable shingle | James E. Loftus, Donn R. Vermilion | 2017-02-21 |