DT

David M. Tschaen

Merck: 30 patents #264 of 9,382Top 3%
BC Banyu Pharmaceutical Co.: 7 patents #56 of 330Top 20%
Overall (All Time): #119,094 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 25 most recent of 31 patents

Patent #TitleCo-InventorsDate
9598397 Process for making reverse transcriptase inhibitors Yang Cao, Donald R. Gauthier, Jr., Guy R. Humphrey, Tetsuji Itoh, Michel Journet +2 more 2017-03-21
7482449 Process for making spirolactone compounds Ralph P. Volante, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida +4 more 2009-01-27
7368569 Process for making spirolactone compounds Ralph P. Volante, Steven A. Weissman, Matthew Heileman, Toshiaki Mase, Takehiko Iida +4 more 2008-05-06
6605720 Process for making spirolactone compounds Kenji Maeda, Shinji Kato, Takehiko Iida 2003-08-12
6559299 Preparation and isolation of indolocarbazole glycosides Steven A. Weissman, Asayuki Kamatani, Shouichi Hiraga, Masashi Kawasaki, Takehiko Iida 2003-05-06
6479672 Diastereoselective preparation of Michael adducts Ioannis Nicolaos Houpis, Ralph P. Volante, Fengrui Lang, Ilias Konstantinos Dorziotis, Shinji Kato +1 more 2002-11-12
6353110 Asymmetric conjugate addition reaction Paul N. Devine, Richard D. Tillyer, Richard M. Heid, Jr. 2002-03-05
6172231 Oxidation process using periodic acid Zhiguo Jake Song, Mangzu Zhao 2001-01-09
6172235 Asymmetric conjugate addition reaction Ulf H. Dolling, Lisa F. Frey, Richard D. Tillyer 2001-01-09
6150554 Oxidation process using periodic acid Jing Li, Zhiguo Jake Song, Mangzu Zhao 2000-11-21
6127573 Oxidaton of primary alcohols to carboxylic acids with a TEMPO catalyst using NaClO.sub.2 and NaClO Jing Li, Zhiguo Jake Song, Mangzu Zhao 2000-10-03
6121026 Enantioselective bioreduction using yeast Michel Chartrain, Barbara Ann Krulewicz, Paul N. Devine 2000-09-19
6046327 Phosphate-mediated cyclization Richard D. Tillyer, Zhiguo Jake Song, Mangzu Zhao 2000-04-04
6031101 Oxidation process using tempo Paul N. Devine, Eiichi Mano, Zhiguo Jake Song, Mangzu Zhao 2000-02-29
6022972 Pyridine propanoic acid derivatives Paul N. Devine, Richard D. Tillyer, Richard M. Heid, Jr. 2000-02-08
5998625 Asymmetric conjugate addition reaction using a chiral additive Richard D. Tillyer, Feng Xu 1999-12-07
5962688 Stereoselective deoxygenation reaction Paul N. Devine, Ulf H. Dolling, Lisa F. Frey, Richard D. Tillyer, Yoshiaki Kato 1999-10-05
5856519 Chiral auxilary for stereoselective alkylations Paul N. Devine, Richard M. Heid, Jr. 1999-01-05
5849914 Compounds formed by an asymmetric conjugate addition reaction Ulf H. Dolling, Lisa F. Frey, Richard D. Tillyer 1998-12-15
5840924 Process of preparing phenyl heterocycles useful as COX-2 inhibitors Richard Desmond, Ulf H. Dolling, Lisa F. Frey, Richard D. Tillyer 1998-11-24
5786515 Synthesis of .alpha.-chloro or fluoro ketones Ulf H. Dolling, Lisa F. Frey, Richard D. Tillyer 1998-07-28
5708186 Stereoselective process Paul N. Devine, Richard M. Heid, Jr. 1998-01-13
5688974 Process for the preparation of an endothelin antagonist Paul N. Devine 1997-11-18
5585504 Process of making cox-2 inhibitors having a lactone bridge Richard Desmond, Ulf H. Dolling, Ben Marcune, Richard D. Tillyer 1996-12-17
5574186 Enantioselective synthesis of cyclic amino alcohols Charles Boudreau, Richard D. Tillyer 1996-11-12