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United States Utility Patents
6,617,460 - 6,617,469

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NumberTitle
6,617,460 Process for preparing toluenesulfinates
6,617,461 Process for preparation of optically active N-substituted azetidine-2-carboxylic acids
6,617,462 Bithienylnaphthalene-and bis(3,4-ethylenedioxythienyl)naphthalene-based monomers and polymers
6,617,463 Method for the production of L-ascorbic acid by lactonization of 2-keto-L-gulonic acid or s2-keto-L-gulonate esters
6,617,464 Production of 5-methylbutyrolactone from levulinic acid
6,617,465 Process for the epoxidation of olefins
6,617,466 Monocylopentadienyl transition metal olefin polymerization catalysts
6,617,467 Process for producing polyalkylene carbonates
6,617,468 Rheologically active urea urethane compounds
6,617,469 Process for preparing malonic diesters in a reactor with internal heat exchangers



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