Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5124483 | Ortho-alkylation of aromatic amines | Guo-shuh J. Lee, V. Rao Durvasula, George E. Hartwell, Kirk D. Anderson, Louis N. Moreno | 1992-06-23 |
| 5072047 | Ortho-alkylation of aromatic amines | Guo-shuh J. Lee, V. Rao Durvasula, Kirk D. Anderson, Louis N. Moreno | 1991-12-10 |
| 4792624 | Process for polymeric MDA, recycle of finished polymeric MDA | Richard Hatfield, Jr., Howard R. Steele | 1988-12-20 |
| 4294987 | Process for preparing methylene dianilines | Richard A. Prather | 1981-10-13 |