Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE44175 | Process for preparing 4-aminodiphenylamines | Roger Keranen Rains, Ralph Albert Genetti, Antonius Johannes van Hengstum | 2013-04-23 |
| 6140538 | Process for preparing 4-aminodiphenylamines | Roger Keranen Rains, Ralph Albert Genetti, Antonius Johannes van Hengstum | 2000-10-31 |
| 4258227 | Short residence hydropyrolysis of residues from aromatic carboxylic acid manufacture | John K. Allen, Agnes M. Palka | 1981-03-24 |