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Patent: 4,461,832
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Summary for Patent: 4,461,832
| Title: | Preparation of an enzymatically active formulation embedded in silica gel |
| Abstract: | A process for the preparation of an enzymatically active formulation embedded in silica gel, wherein an aqueous mixture of an enzymatically active formulation and a dissolved alkali metal silicate and/or ammonium silicate is suspended in an organic, water-immiscible fluid and then converted to a water-insoluble gel. |
| Inventor(s): | Tschang; Chung-Ji (Frankenthal, DE), Klefenz; Heinrich (Hochdorf-Assenheim, DE), Sanner; Axel (Frankenthal, DE), Zahn; Wolfgang (Altrip, DE) |
| Assignee: | BASF Aktiengesellschaft (DE) |
| Application Number: | 06/376,597 |
| Patent Claims: | see list of patent claims |
Details for Patent 4,461,832
| Applicant | Tradename | Biologic Ingredient | Dosage Form | BLA | Number | Approval Date | Patent No. | Assignee | Estimated Patent Expiration | Status | Orphan | Source |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Merck | ELSPAR | asparaginase | VIAL | 101063 | 001 | 1978-01-10 | Start Trial | BASF Aktiengesellschaft (DE) | 2001-07-24 | RX | search | |
| >Applicant | >Tradename | >Biologic Ingredient | >Dosage Form | >BLA | >Number | >Approval Date | >Patent No. | >Assignee | >Estimated Patent Expiration | >Status | >Orphan | >Source |
International Patent Family for US Patent 4,461,832
| Country | Patent Number | Publication Date |
|---|---|---|
| Japan | H0130477 | Jun 20, 1989 |
| Japan | S55127990 | Oct 03, 1980 |
| European Patent Office | 0017115 | Feb 16, 1983 |
| European Patent Office | 0017115 | Nov 11, 1981 |
| European Patent Office | 0017115 | Oct 15, 1980 |
| >Country | >Patent Number | >Publication Date |
