Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6794420 | Methods of producing stable novel black polyurethane articles with polymeric colorants | Mark E. Ragsdale, Jusong Xia | 2004-09-21 |
| 6642283 | Stable novel black polyurethane article colorants | Mark E. Ragsdale | 2003-11-04 |
| 6627109 | Polyol formulations for producing antiscorch polyurethane slabstock foams | Mark E. Ragsdale | 2003-09-30 |
| 6541532 | Scorch inhibiting compositions for polyurethane foams | Mark E. Ragsdale | 2003-04-01 |
| 6525108 | Scorch inhibiting compositions for polyurethane foams | Mark E. Ragsdale | 2003-02-25 |
| 6395797 | Reduction of color degradation of triphenylmethane polymeric colorants within polyurethane foams | Mark E. Ragsdale | 2002-05-28 |
| 6294590 | Reduction of color degradation of triphenylmethane polymeric colorants within polyurethane foams | Mark E. Ragsdale | 2001-09-25 |