SUMIKA FINE CHEMICALS CO., LTD.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2002/0028,944 L-tartrate of trans-(-)-4-(4-fluorophenyl)-3-hydroxymethylpiperidine compound and process for preparing the sameAbandonedSep 27, 01Mar 07, 02[C07D]
2001/0020,110 Production methods of alpha, alpha, alpha-trifluoromethylphenyl-substitute-d benzoic acid and intermediate thereforAbandonedJan 31, 01Sep 06, 01[C07C]
2001/0005,762 Methods for producing and separating erythro- and threo-2-hydroxy-3-nitrob-utanoic acid compoundsAbandonedDec 27, 00Jun 28, 01[C07C]
6156940 Process for producing optically active carbinolsExpiredApr 08, 98Dec 05, 00[C07C]
6090970 Production method of alkylated cyanoacetylureaExpiredMay 27, 99Jul 18, 00[C07C]
5914399 Method for producing 5-isopropyluracilExpiredOct 20, 98Jun 22, 99[C07D]
5831132 Process for producing optically active carbinolsExpiredOct 27, 95Nov 03, 98[C07C]
5717116 Process for producing (R)-styrene oxidesExpiredMar 29, 96Feb 10, 98[C07D]
5367075 Anthrapyridone compounds, their production process and their useExpiredDec 14, 93Nov 22, 94[C09B]
5304677 Method for producing 2,6-dihydroxybenzoic acidExpiredJan 22, 93Apr 19, 94[C07C]
5276198 Process for producing 2-methyl-1,3-cyclohexanedione and 2-methylresorcinolExpiredAug 21, 92Jan 04, 94[C07C]
5183892 Anthrapyridone compoundsExpiredNov 30, 90Feb 02, 93[C07D]
5017713 Process for preparing substituted aminoanthraquinonesExpiredNov 08, 89May 21, 91[C07C]
5012015 Process for producing 2,4-dichloro-3-alkyl-6-nitrophenolExpiredMar 07, 89Apr 30, 91[C07C]
4902798 Anthrapyridone compoundsExpiredNov 30, 87Feb 20, 90[C09B]

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