Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6673970 | Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines | Mark S. Solomon, William D. Tippins | 2004-01-06 |
| 6031136 | Process for preparing methylene diphenylamines by partial neutralization of acidic methylene diphenylamines | Mark S. Solomon, William D. Tippins | 2000-02-29 |
| 5786506 | Process for distillation of crude isocyanate concentrates | Stephen A. DiBiase, Larry W. Arndt, Gregory M. Stansfield | 1998-07-28 |
| 5349082 | Toluene diisocyanate residue | William E. Slack, Kenneth L. Dunlap, Larry W. Arndt | 1994-09-20 |