Patent: 4,374,926
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Summary for Patent: 4,374,926
Title: | Method for the production of improved chymopapain |
Abstract: | A method of preparing a purified proteolytically active chymopapain from crude chymopapain extracts by the use of exchange resin absorption purification techniques is provided. The purified chymopapain is characterized by relative freedom from proteolytically inactive, colored and/or toxic components and by its failure to form a precipitate with barium chloride test solution (U.S.P.) under acid conditions. |
Inventor(s): | Stern; Ivan J. (Chicago, IL) |
Assignee: | Smith Laboratories, Inc. (Northbrook, IL) |
Application Number: | 06/263,196 |
Patent Claims: | see list of patent claims |
Details for Patent 4,374,926
Applicant | Tradename | Biologic Ingredient | Dosage Form | BLA | Approval Date | Patent No. | Expiredate |
---|---|---|---|---|---|---|---|
Discure Medical, Llc | CHYMODIACTIN | chymopapain | For Injection | 018663 | 11/10/1982 | ⤷ Try a Trial | 2040-04-01 |
Discure Medical, Llc | CHYMODIACTIN | chymopapain | For Injection | 018663 | 08/21/1984 | ⤷ Try a Trial | 2040-04-01 |
>Applicant | >Tradename | >Biologic Ingredient | >Dosage Form | >BLA | >Approval Date | >Patent No. | >Expiredate |