Issued Patents 2002
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6479699 | Process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid | Donn A. DuBois, Susan Secor Pfrehm, William Larry King | 2002-11-12 |
| 6452045 | Process for improving yields in a disproportionation reaction (high yield Henkel) | James Laurel Buechele, Donn A. DuBois, Susan Secor Pfrehm, William Larry King | 2002-09-17 |
| 6448436 | Integrated process for the production of 2, 6-naphthalene dicarboxylic acid | Keith Michael Kreitman, Steve Edward Brewer, John B. Rodden, Robert Lawrence Blackbourn, James Laurel Buechele +6 more | 2002-09-10 |
| 6441225 | Purification of aromatic diacids | — | 2002-08-27 |
| 6441224 | Process for carboxylation of naphthoic acid to naphthalene dicarboxylic acid | Donn A. DuBois, Susan Secor Pfrehm, William Larry King | 2002-08-27 |
| 6426431 | Method for increasing the yield of 2,6 -NDA | Zaida Diaz | 2002-07-30 |
| 6355834 | Process for making an aromatic diacid in one step using a single catalyst system | Susan Secor Pfrehm, William Larry King | 2002-03-12 |