Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7504539 | Process for preparing 4-aminodiphenylamine intermediates | Roger Keranen Rains | 2009-03-17 |
| 7183439 | Process for preparing 4-aminodiphenylamine intermediates | Roger Keranen Rains | 2007-02-27 |
| 6583320 | Process for preparing 4-aminodiphenylamine intermediates | Roger Keranen Rains | 2003-06-24 |
| 6395933 | Process for preparing 4-aminodiphenylamine intermediates | Roger Keranen Rains | 2002-05-28 |