Issued Patents All Time
Showing 76–100 of 154 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7014697 | Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with cyano compounds | — | 2006-03-21 |
| 7002024 | Production of a N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines | — | 2006-02-21 |
| 6995275 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds | — | 2006-02-07 |
| 6992195 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arylamines | — | 2006-01-31 |
| 6991744 | Refrigerant compositions containing a compatibilizer | Walter Mahler | 2006-01-31 |
| 6987192 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds | — | 2006-01-17 |
| 6984736 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds | — | 2006-01-10 |
| 6982339 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with aryl amines | — | 2006-01-03 |
| 6977291 | Production of polytrimethylene ether glycol and copolymers thereof | Hari Babu Sunkara | 2005-12-20 |
| 6946563 | Production of 5-methyl-dihydro-furan-2-one from levulinic acid in supercritical media | Keith W. Hutchenson | 2005-09-20 |
| 6930126 | PRODUCTION OF 5-METHYL-N-(METHYL ARYL)-2-PYRROLIDONE, 5-METHYL-N-(METHYL CYCLOALKYL)-2-PYRROLIDONE AND 5-METHYL-N-ALKYL-2-PYRROLIDONE BY REDUCTIVE AMINATION OF LEVULINIC ACID ESTERS WITH CYANO COMPOUNDS | — | 2005-08-16 |
| 6916842 | PRODUCTION OF 5-METHYL-N-(METHYL ARYL)-2-PYRROLIDONE, 5-METHYL-N-(METHYL CYCLOALKYL)-2-PYRROLIDONE AND 5-METHYL-N-ALKYL-2-PYRROLIDONE BY REDUCTIVE AMINATION OF LEVULINIC ACID ESTERS WITH CYANO COMPOUNDS | — | 2005-07-12 |
| 6906201 | Production of N-(methyl aryl)-2-lactam, N-(methyl cycloalkyl)-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl cyano compounds | — | 2005-06-14 |
| 6903222 | Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-cycloalkyl-2-pyrrolidone by reductive amination of levulinic acid with aryl amines | — | 2005-06-07 |
| 6900337 | Production of 5-methyl-1-hydrocarbyl-2-pyrrolidone by reductive amination of levulinic acid | Frank E. Herkes | 2005-05-31 |
| 6863722 | Production of 5-methyl-n-aryl-2-pyrrolidone and 5-methyl-n-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds | — | 2005-03-08 |
| 6855731 | Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid esters with nitro compounds | — | 2005-02-15 |
| 6841520 | Production of 5-methyl-N-(methyl aryl)-2-pyrrolidone, 5-methyl-N-(methyl cycloalkyl)-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with cyano compounds | — | 2005-01-11 |
| 6835849 | Synthesis of alkenoate esters from lactones and alcohols | — | 2004-12-28 |
| 6828278 | Production of N-aryl-2-lactam and N-cycloalkyl-2-lactam by reductive amination of lactones with arly amines | — | 2004-12-07 |
| 6828277 | Production of N-aryl-2-lactam and N-alkyl-2-lactam by reductive amination of lactones with aryl and alkyl nitro compounds | — | 2004-12-07 |
| 6818593 | Production of 5-Methyl-N-aryl-2-pyrrolidone and 5-methyl-N-alkyl-2-pyrrolidone by reductive amination of levulinic acid with nitro compounds | — | 2004-11-16 |
| 6762333 | Process for reducing the fluorine content of hydrofluorocarbons and hydrohalofluorocarbons | V. N. Mallikarjuna Rao, Steven H. Swearingen | 2004-07-13 |
| 6756501 | Manufacture of 3-methyl-tetrahydrofuran from alpha-methylene-gamma-butyrolactone in a single step process | — | 2004-06-29 |
| 6743819 | Production of 5-methyl-N-aryl-2-pyrrolidone and 5-methyl-N-cycloalkyl-2-pyrrolidone by reductive amination of levulinic acid with aryl amines | — | 2004-06-01 |