Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8119548 | Nanosilver as a biocide in building materials | Ajay Kumar, Kenneth R. Nieradka | 2012-02-21 |
| 6913816 | Composite mat product for roofing construction | William K. Longcor, IV | 2005-07-05 |
| 6774071 | Foamed facer and insulation boards made therefrom | William K. Longcor, IV, Lorin J. Lichten | 2004-08-10 |
| 6368991 | Foamed facer and insulation boards made therefrom | Frank S. Franzyshen, Murray Sherman | 2002-04-09 |
| 6365533 | Foamed facer and insulation boards made therefrom cross-reference to related patent application | Frank S. Franzyshen, Murray Sherman | 2002-04-02 |
| 5776841 | Sheet felt | Alfredo A. Bondoc | 1998-07-07 |
| 5717012 | Sheet felt | Alfredo A. Bondoc | 1998-02-10 |
| 4923712 | Asphaltic flashing stick | Jason Gladfelter, William J. Woodring, Louis L. Grube | 1990-05-08 |
| 4886554 | Solar roofing assembly | William J. Woodring | 1989-12-12 |
| 4851500 | Process for preparing a rubber scrap composition | Steven S. Lalwani, William G. Pursell, Sr. | 1989-07-25 |
| 4444915 | Rigid polyisocyanurate foam | Louis L. Grube | 1984-04-24 |
| 4444916 | Polyisocyanurate foam and reaction mixture for making same | Louis L. Grube | 1984-04-24 |
| 4444917 | Polyisocyanurate foam | Louis L. Grube | 1984-04-24 |