Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5334676 | Epoxy resin advanced with polyphenol/oxyalkylated aromatic or cycloyaliphatic diglycidyl ether product | Kenneth W. Anderson, Ross C. Whiteside, Jr. | 1994-08-02 |
| 5241021 | Active hydrogen-containing compositions, process for preparing rigid polyurethane foams and articles prepared therefrom | Robert E. Hefner, Jr. | 1993-08-31 |
| 5212262 | Epoxy resin advanced with diphenol/diglycidyl ether adducts | Kenneth W. Anderson, Ross C. Whiteside, Jr. | 1993-05-18 |
| 5024785 | Liquid crystal/rigid rodlike polymer modified epoxy/vinyl ester resins | Robert E. Hefner, Jr. | 1991-06-18 |
| 4956425 | Polymerized monomers in unsaturated compound-reacted epoxy resins advanced with dihydric phenol | Robert E. Hefner, Jr. | 1990-09-11 |
| 4835228 | Rheology low gloss, high impact strength powder coating resins | Robert E. Hefner, Jr. | 1989-05-30 |
| 4782124 | Polycarbonate modified epoxy resins | Robert E. Hefner, Jr., Manuel C. Tyler, Jr. | 1988-11-01 |
| 4611015 | Polymer concrete compositions containing water absorbent polymers | Robert E. Hefner, Jr. | 1986-09-09 |