Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5013843 | High yield of pyridine and/or alkylpyridine(s) in condensation reaction of ternary aldehydes and/or ketones with ammonia | David Feitler | 1991-05-07 |
| 4883881 | Preparation of UV grade synthetic pyridine | David Feitler | 1989-11-28 |
| 4675410 | Process for the production of pyridine or alkyl substituted pyridines | David Feitler, Wolfgang Schimming | 1987-06-23 |