Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5563269 | 2-alkoxy-4-hydrazinopyrimidine compounds and their use in the preparation of 5-alkoxy-1,2,4-triazolo(4,3-C)-pyrimidine-3 (2H)-thione compounds | Dawn Shiang | 1996-10-08 |
| 5552546 | Process for the preparation of 2-ethoxy-4,6-dihydroxypyrimidine | Douglas L. Pearson, Gary Roth, Carmen A. Scott, Ron B. Leng, Dawn Shiang | 1996-09-03 |
| 5488109 | 5-alkoxy[1,2,4]triazolo[1,5-c]pyrimidine-2(3H)--thione compounds and their use in the preparation of and 2-chlorosulfonyl-5-alkoxy[1,2,4]triazolo[1,5-c]-pyrimidine compounds | Thomas A. Olmstead, Michael A. Gonzalez, Douglas L. Pearson, James W. Ringer, Dawn Shiang +2 more | 1996-01-30 |
| 5480991 | 2-Alkoxy-4-hydroazinopyrimidine compounds and their use in the preparation of 5-alkoxy-1,2,4-triazolo[4,3-c]pyrimidine-3(2H)-thione compounds | Dawn Shiang | 1996-01-02 |
| 5461153 | 2-alkoxy-4-hydrazinopyrimidine compounds | Dawn Shiang | 1995-10-24 |
| 5189210 | Process for the preparation of 3- and/or 5-substituted anthranilic acids | Terry L. Wright | 1993-02-23 |
| 5106984 | 2-hydrocarbyl-3,6-dichloropyridines and their preparation | Marc Halpern, Thomas J. Dietsche | 1992-04-21 |
| 5084576 | 2-hydrocarbyl-3,6-dichloropyridine compounds | Marc Halpern, Thomas J. Dietsche, J. Brian Barron | 1992-01-28 |
| 5012017 | Phenoxyphenoxypropionates, intermediates thereof and methods of preparation | Norman R. Pearson, Anthony P. Haag, Timothy J. Adaway, Larry D. Kershner, Andrew S. Kende | 1991-04-30 |
| 4988812 | Aqueous process for the preparation of 5-methyl-n-(aryl)-1,2,4-triazolo(1,5-A)pyrimidine-2-sulfonamides | Kay Kim, Richard C. Krauss | 1991-01-29 |
| 4766219 | Preparation of 2-cyano-6-chloropyridine compounds | Alexander P. Fung, Jim Love, Thomas J. Dietsche | 1988-08-23 |
| 4739070 | Preparation of substituted (dichloromethyl)pyridines | — | 1988-04-19 |
| 4713460 | 2,3-bis-(poly)(chloromethyl)pyridines | Michael A. Desjardin, Thomas J. Dietsche | 1987-12-15 |
| 4705859 | Polychloropyridine production from polychloro-2,3-lutidines | Thomas J. Dietsche | 1987-11-10 |
| 4594422 | Selective halogenation of 6-hydroxy picoline derivatives | — | 1986-06-10 |
| 4499277 | Reduction of trichloromethylpyridines to dichloromethylpyridines | Sudarhshan K. Malhotra | 1985-02-12 |
| 4499276 | Reduction of trichloromethylpyridines to dichloromethylpyridines | Sudarshan K. Malhotra | 1985-02-12 |
| 4327220 | Process for reducing picoline derivatives using copper catalyst | — | 1982-04-27 |
| 4275212 | Method of preparing pyridinyloxyphenols and derivatives | — | 1981-06-23 |
| 4257899 | Method for removing chloropicrin from an aqueous medium | — | 1981-03-24 |