Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7811950 | Dimensionally stable ply suitable for roofing webs or roof-sealing webs | Wolfgang Greiser, Roger Souther | 2010-10-12 |
| 6436510 | Low-flammability shingle | Peter Heidel | 2002-08-20 |
| 6235657 | Laminate with web and laid components | Michael Schops, Franz Kaulich | 2001-05-22 |
| 6197707 | Flame-retarding support inlay with improved adhesion | Hans-Jurgen Profe, Monika Nagl, Peter Heidel | 2001-03-06 |
| 5660915 | Bituminous roofing underfelt and base felt therefor | Michael Schoeps, Franz Kaulich | 1997-08-26 |
| 5219635 | Sheathing web | Franz Kaulich | 1993-06-15 |
| 5130178 | Support web for roofing membranes | Karl-Christian Zerfass, Franz Kaulich, Michael Schops, Hans Wagner | 1992-07-14 |
| 4987027 | Support web for roof foundation webs | Karl-Christian Zerfass, Franz Kaulich, Michael Schops, Hans Wagner | 1991-01-22 |