Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7485746 | Staged countercurrent oxidation | Frank G. Belmonte, David L. Sikkenga, Olusola Sunday Ogundiran, Kenneth J. Abrams, Linus K. Leung +2 more | 2009-02-03 |
| 7247742 | Recycling polyethylene naphthalate containing materials in a process to produce diesters | Rosemary F. McMahon, John A. Macek, Gregory P. Hussmann, Michael Panzer, Raymond J. Eifert +2 more | 2007-07-24 |
| 6239321 | Upgrading light oligomers | Egils Vitands | 2001-05-29 |
| 6028211 | Composition and method for reducing fouling in process equipment used for manufacturing aromatic materials | David A. Young, Paul K. Behrens, Juergen K. Holzhauer | 2000-02-22 |
| 5331082 | Process for manufacture of high molecular weight polyester resins from 2,6-naphthalene dicarboxylic acid | John A. Macek, Lawrence G. Packer | 1994-07-19 |
| 5221798 | Changing the regiopurity of mixtures containing 4,4'-disubstituted diphenyl carbonates | — | 1993-06-22 |
| 5194572 | Stabilized naphthalenedicarboxylic acid diesters | — | 1993-03-16 |
| 5187294 | Regioselective nitration of diphenyl compounds | — | 1993-02-16 |
| 5138025 | Stabilized naphthalenedicarboxylic acid diesters | — | 1992-08-11 |
| 5037994 | Regioselective nitration of diphenyl compounds | Weilong L. Chiang | 1991-08-06 |
| 4675456 | Catalytic etherification of phenols to alkyl aryl ethers | — | 1987-06-23 |
| 4675454 | Catalytic etherification of phenols to alkyl aryl ethers | — | 1987-06-23 |
| 4675455 | Catalytic etherification of phenols to alkyl aryl ethers | — | 1987-06-23 |
| 4638098 | Catalytic etherification of phenols to alkyl aryl ethers | — | 1987-01-20 |
| 4611084 | Catalytic etherification of phenols to alkyl aryl ethers | — | 1986-09-09 |