Issued Patents 2003
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6669407 | Polyurethane geotextile composite liner with improved water resistance and a process for the production thereof | Ashok M. Sarpeshkar, Marylyn Donaldson, W. Tracy Estabrook, Ralf Guether | 2003-12-30 |
| 6632875 | Polyurethane-forming composition with adjustable mix viscosity, geotextile composites prepared therefrom and a process for producing such composites | Ralf Guether | 2003-10-14 |
| 6617412 | Fertilizer encapsulation using sulfur containing polyols | Robert L. Cline | 2003-09-09 |
| 6602025 | Process for lining canals, ditches and pipes with a non-sagging polyurethane/geofabric composite | Ralf Guether | 2003-08-05 |
| 6582771 | Method for producing a polyurethane/geofabric composite | Ralf Guether, LeRoy Payne | 2003-06-24 |
| 6562932 | Light stable one-shot urethane-urea elastomers | Robert L. Cline, Richard S. Pantone, Ralf Guether, Thomas Sekelik, Karl W. Haider | 2003-05-13 |
| 6503288 | Process for the production of biodegradable encapsulated fertilizers | — | 2003-01-07 |
| 6503980 | Liquid polyurethane plasticizers containing allophanate and/or carbodiimide and/or uretonimine groups | Richard S. Pantone | 2003-01-07 |