Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8240959 | Geosynthetic tufted drain barrier | Charles S. Rhoades | 2012-08-14 |
| 8039081 | Fuzzy woven layers, geocomposite laminates incorporating them, and related methods | Giovanni Capra | 2011-10-18 |
| 7309188 | Drainable base course for a landfill and method of forming the same | Aigen Zhao, Gary L. Shaffer | 2007-12-18 |
| 7131788 | High-flow void-maintaining membrane laminates, grids and methods | Aigen Zhao, Gary L. Shaffer | 2006-11-07 |
| 6860680 | Waste containment and processing facilities formed contemporaneously with the disposal of mineral refuse, and related methods | Mark Topp, Tracy Johnson | 2005-03-01 |
| 6846131 | Methods and facilities for producing revenue from gypsum-based refuse sites | Mark Topp, Tracy Johnson | 2005-01-25 |
| 6802669 | Void-maintaining synthetic drainable base courses and methods for extending the useful life of paved structures | Giovanni Capra, Aigen Zhao | 2004-10-12 |
| 6595723 | Conversion of gypsum stacks to waste containment facilities and related construction and business methods | Mark Topp, Tracey R. Johnson | 2003-07-22 |
| 6505996 | Drainage system with unitary void-maintaining geosynthetic structure and method for constructing system | Aigen Zhao, Giovanni Capra | 2003-01-14 |