Issued Patents All Time
Showing 1–18 of 18 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9446568 | Building membrane | Timothy J. Larson, William P. Kuhn, Li-Ying Yang | 2016-09-20 |
| 8347576 | Mechanically embossed single ply roofing membrane for anti-roll blocking | Li-Ying Yang, William P. Kuhn | 2013-01-08 |
| 8262833 | Use of infrared technology to install and/or repair construction membranes | Ansil Dyal, Louis L. Grube | 2012-09-11 |
| 8153220 | Metallic T-joint patch | David Amanullah, Harley F. Cummings | 2012-04-10 |
| 7954286 | Heat weldable pipe curb accessory | Amir Khan | 2011-06-07 |
| 7799406 | Method and use of stretchable nonreinforced TPO building materials | Li-Ying Yang | 2010-09-21 |
| 7666491 | Method and use of a stretchable nonreinforced TPO building materials | Li-Ying Yang | 2010-02-23 |
| 7638180 | Ribbed joint patch for single ply roofing membranes | — | 2009-12-29 |
| 7413392 | Plastic/metal composite stress plate and method of using same for securing a thermoplastic roof membrane to roof deck | William P. Kuhn | 2008-08-19 |
| D501566 | Embossed single ply roofing membrane | Li-Ying Yang, William P. Kuhn | 2005-02-01 |
| D501051 | Embossed single ply roofing membrane | Li-Ying Yang, William P. Kuhn | 2005-01-18 |
| D501052 | Embossed single ply roofing membrane | Li-Ying Yang, William P. Kuhn | 2005-01-18 |
| D494460 | Ellipsoidal plastic/metal composite stress plate with fastener | William P. Kuhn | 2004-08-17 |
| D493706 | Square plastic/metal composite stress plate with fastener | William P. Kuhn | 2004-08-03 |
| 6764260 | Plastic/metal composite batten bar and method of using same for securing a thermoplastic roof membrane to a roof deck | William P. Kuhn | 2004-07-20 |
| D493099 | Circular plastic/metal composite stress plate with fastener | William P. Kuhn | 2004-07-20 |
| D493100 | Rectangular plastic/metal composite stress plate with fastener | William P. Kuhn | 2004-07-20 |
| 6475275 | Cement composition | Robert Ostertog | 2002-11-05 |