EP Patent

EP0610506A1 — Process for producing high-purity eicosapentaenoic acid or ester thereof

Assigned to Nissui Corp · Expires 1994-08-17 · 32y expired

What this patent protects

Eicosapentaenoic acid or an ester thereof, having a purity as high as at least 99 % and being useful for preventing or treating thrombosis, can be obtained in a recovery of 55 % or above by subjecting a mixture of fatty acids or esters thereof obtained from a natural fat or oil c…

USPTO Abstract

Eicosapentaenoic acid or an ester thereof, having a purity as high as at least 99 % and being useful for preventing or treating thrombosis, can be obtained in a recovery of 55 % or above by subjecting a mixture of fatty acids or esters thereof obtained from a natural fat or oil containing eicosapentaenoic acid or derivatives thereof to precise fractional distillation in a high vacuum by using a number of, particularly at least three, distillation columns to obtain a fraction mainly comprising C₂₀ fatty acids or esters thereof, and subjecting this fraction to reversed phase column chromatography for fractional purification.

Drugs covered by this patent

Patent Metadata

Patent number
EP0610506A1
Jurisdiction
EP
Classification
—
Expires
1994-08-17
Drug substance claim
No
Drug product claim
No
Assignee
Nissui Corp
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

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