Patent assignee · JP · COMPANY

KYOWA HAKKO BIO CO., LTD.

100Patents
95Active
100Granted
58Portfolio score

Filing activity: Jan 9, 2003 → Dec 21, 2022 · 43 expiring within 5 years

Most-cited patents

PatentTitleAreaCited byStatus
US8530203B2 Process for producing useful substance Chemistry; Metallurgy 17 Active
US8883459B2 Process for production of cis-4-hydroxy-L-proline Chemistry; Metallurgy 6 Active
US8541209B2 L-proline cis-4-hydroxylase and use thereof to produce cis-4-hydroxy-L-proline Chemistry; Metallurgy 6 Active
US8188308B2 Crystal of glutathione and process for production thereof Human Necessities 5 Active
US10905705B2 Agent for preventing or improving decline in brain function Human Necessities 3 Active
US7888078B2 Process for producing amino acids Chemistry; Metallurgy 3 Active
US7579175B2 Process for producing N-acetylneuraminic acid Chemistry; Metallurgy 2 Expired
US9567616B2 Process for producing target substance by fermentation Emerging Cross-Sectional Technologies 2 Active
US8609735B2 Rapid-acting, blood-arginine-level-increasable oral preparation comprising citrulline and arginine Human Necessities 2 Active
US9833426B2 Agent for preventing deterioration in vascular endothelial function or improving vascular endothelial function Human Necessities 2 Active
US10023884B2 Microorganism producing docosahexaenoic acid and utilization thereof Chemistry; Metallurgy 2 Active
US8685914B2 L-alanyl-L-glutamine crystal Chemistry; Metallurgy 1 Active
US7939099B2 Sustained improver of muscular fatigue Human Necessities 1 Expired
US8067537B2 Composition and method for treatment of stomatitis Human Necessities 1 Active
US8633001B2 Process for producing optically active succinimide derivatives and intermediates thereof Chemistry; Metallurgy 1 Active
US9028669B2 Process for producing reduced glutathione Chemistry; Metallurgy 1 Active
US9000126B2 Crystalline oxidized glutathione and production method therefor Chemistry; Metallurgy 1 Active
US8900830B2 Process for producing optically active succinimide derivatives Chemistry; Metallurgy 1 Active
US7790702B2 Lipid metabolism improving agent Human Necessities 1 Active
US8153692B2 Oral preparation for preventing or improving skin dryness Human Necessities 1 Active
US9816095B2 Double-stranded ribonucleic acid for adjuvants Chemistry; Metallurgy 1 Active
US10640532B2 Crystal of reduced glutathione Performing Operations; Transporting 1 Active
US10858393B2 Crystal of reduced glutathione and method for producing same Chemistry; Metallurgy 1 Active
US7939294B2 DNA encoding proteins having dipeptide-synthesizing activity and methods of using the same Chemistry; Metallurgy 1 Active
US10094031B2 Method for manufacturing reduced glutathione Chemistry; Metallurgy 1 Active

Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.