Issued Patents All Time
Showing 101–123 of 123 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6642406 | Synthesis of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester using L-&agr;-aspartyl-L-phenylalanine 1-methyl ester precursors | Zhi Guo, Steve Schroeder, Kurt Wachholder | 2003-11-04 |
| 6627431 | Chemoenzymatic synthesis of neotame | Robert Yongxin Zhao | 2003-09-30 |
| 6573409 | Process for the preparation of 3,3-dimethylbutanal | Jerry R. Ebner, Zhi Guo, Arnold Hershman, Loraine Klein, William D. McGhee +1 more | 2003-06-03 |
| 6465677 | Method for the preparation of N-neohexyl-&agr;-aspartyl-L-phenylalanine methyl ester from imidazolidin-4-one intermediates | Vladislav Orlovski, Mike G. Scaros, Christine M. Moore | 2002-10-15 |
| 6423864 | Purification of N-[N-(3,3-dimethylbutyl)-L-&agr;-aspartyl]-L-phenylalanine 1-methyl ester via crystallization | Christine M. Moore, Kurt Wachholder | 2002-07-23 |
| 6368651 | Use of additives to modify the taste characteristics of N-neohexyl-&agr;-aspartyl-L-phenylalanine methyl ester | Paula A. Gerlat, Gale Walters, Ihab E. Bishay, Tammy C. Jarrett, Nitin V. Desai +2 more | 2002-04-09 |
| 6291004 | Basic salts of n-[n-(3,3-dimethylbutyl)-l-.alpha.-aspartyl]-l-phenylalanine 1-methyl ester | Kurt Wachholder | 2001-09-18 |
| 6281380 | Synthesis of N-(N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl)L-phenylalanine1-methyl ester by reductive alkylation and crystallization/ isolation in aqueous methanol | Mike G. Scaros, Kurt Wachholder | 2001-08-28 |
| 6225493 | Metal ion assisted N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester isomer resolution | Joseph P. Haar, Jr., Robert Yongxin Zhao | 2001-05-01 |
| 6214402 | Co-crystallization of sugar and n-[n-(3,3-dimethylbutyl)-l .alpha.aspartyl]-l-phenylalanine 1-methyl ester | Jim Fotos, Ihab E. Bishay, Kurt Wachholder, Nitin V. Desai | 2001-04-10 |
| 6180156 | Acid salts of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester | Kurt Wachholder | 2001-01-30 |
| 6146680 | Metal complexes of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester | Zhi Guo | 2000-11-14 |
| 6129942 | Sweetener salts of N-[N-(3,3-dimethylbutyl)-L-.alpha.-aspartyl]-L-phenylalanine 1-methyl ester | Zhi Guo | 2000-10-10 |
| 6077962 | N-3, 3-dimethylbutyl-L-aspartic acid and esters thereof, the process of preparing the same, and the process for preparing N-(N-(3,3-dimethylbutyl) -.alpha. L-aspartyl)-L- phenylalanine 1-methyl ester therefrom | Marie-Christine D. Chapeau | 2000-06-20 |
| 5994593 | Synthesis and purification of 3,3-dimethylbutyraldehyde via hydrolysis of 1,1-dichloro-3,3-dimethylbutane or 1-bromo-1-chloro-3,3-dimethylbutane | Zhi Guo | 1999-11-30 |
| 5977415 | Preparation of 3, 3-dimethylbutyraldehyde from a tert-butyl cation precursor, vinyl chloride and an acidic catalyst | Zhi Guo | 1999-11-02 |
| 5973209 | Method for preparing 3, 3-dimethybutyraldehyde | Marie-Christine D. Chapeau | 1999-10-26 |
| 5928909 | Regioselective .alpha.-hydrolysis of amino acid diesters using pig liver esterase | David J. Ager, David P. Pantaleone | 1999-07-27 |
| 5905175 | Synthesis and purification of 3,3-dimethylbutyraldehyde via oxidation of 1-chloro-3,3-dimethylbutane with dimethyl sulfoxide | Zhi Guo | 1999-05-18 |
| 5856584 | Preparation of 3,3-dimethylbutyraldehyde by oxidation of 3, 3-dimethylbutanol | David J. Ager, Alan R. Katritzky | 1999-01-05 |
| 5773261 | Regioselective .alpha.-hydrolysis of amino acid diesters using pig liver esterase | David J. Ager, David P. Pantaleone | 1998-06-30 |
| 5770775 | Method for preparing 3,3-dimethylbutyraldehyde | Alan R. Katritzky | 1998-06-23 |
| 5728862 | Method for preparing and purifying an N-alkylated aspartame derivative | — | 1998-03-17 |