Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8881625 | High speed, high torque screw fasteners and drive systems | — | 2014-11-11 |
| 6564520 | Sheet-like masonry block drainage system | Donald A. Starke, John A. Striednig, Keith R. Bartlett | 2003-05-20 |
| 5824401 | Oil-barrier waterproofing membrance laminate | Robert A. Wiercinski | 1998-10-20 |
| 5687517 | Skid-resistant roofing underlayment | Robert A. Wiercinski | 1997-11-18 |
| 5496615 | Waterproofing membrane | Keith R. Bartlett, Christopher Buss, Timothy J. Martin, Andre Gerber, Peter C. Colarusso | 1996-03-05 |
| 5406759 | Method for protecting subgrade vertical wall from stone impacts in backfill operation and laminate for accomplishing the same | Marc S. DeRosa, Robert A. Wiercinski, Stephen J. Agambar | 1995-04-18 |
| 5316848 | Waterproofing membrane | Keith R. Bartlett | 1994-05-31 |
| 5270373 | Aqueous-based waterproofing primer system and method | Robert A. Wiercinski, James M. Gaidis, Susan G. Ehrlich | 1993-12-14 |
| 4591611 | Ionomeric polymer compositions | Bahram Siadat | 1986-05-27 |
| 4472231 | High shear resistant pipewrap anti-corrosion system | — | 1984-09-18 |
| 4234283 | Scrap metal fed system for a closed rotary kiln or heating oven | Noel H. Twyman | 1980-11-18 |