Prototek, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6297277 Cysteine protease inhibitors containing heterocyclic leaving groupsExpiredJul 20, 99Oct 02, 01[A01N]
6147188 .alpha.- (1,3- or 1, 2- dicarbonylenol ether methyl ketones as cysteine protease inhibitorsExpiredFeb 02, 98Nov 14, 00[C07K]
5925772 Cysteine protease inhibitors containing heterocyclic leaving groupsExpiredSep 02, 97Jul 20, 99[A61K, C07D]
5714484 .alpha.-(1,3-dicarbonylenol ether) methyl ketones as cysteine protease inhibitorsExpiredJun 07, 95Feb 03, 98[A61K, C07D]
5663380 Cysteine protease inhibitors containing heterocyclic leaving groupsExpiredJan 22, 96Sep 02, 97[A61K, C07D]
5486623 Cysteine protease inhibitors containing heterocyclic leaving groupsExpiredDec 08, 93Jan 23, 96[A61K, C07D]
5374623 Cysteine protease inhibitors effective for in vivo useExpiredAug 20, 92Dec 20, 94[A61K, C07K]
5344939 Process for forming a fluoromethyl ketoneExpiredMar 11, 93Sep 06, 94[C07S, C07C]
5210272 Process for forming a fluoromethyl ketoneExpiredAug 14, 91May 11, 93[C07C]
5101068 Magnesium fluoromalonatesExpiredFeb 16, 90Mar 31, 92[C07C]
4908309 Method of detecting cysteine proteasesExpiredSep 08, 87Mar 13, 90[C12Q]
4771123 Peptide thioneamides as selective substrates for cysteine proteasesExpiredMar 11, 86Sep 13, 88[C07K]
4518528 .alpha. Amino fluoro ketonesExpiredFeb 06, 84May 21, 85[C07C]

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