Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10696868 | Use of an additive and paving grade asphalt in shingle coating asphalt composition manufacture | Robert E. Quinn, Laurand Henry Lewandowski | 2020-06-30 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10696868 | Use of an additive and paving grade asphalt in shingle coating asphalt composition manufacture | Robert E. Quinn, Laurand Henry Lewandowski | 2020-06-30 |