Details for Patent: 6,294,572
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Summary for Patent: 6,294,572
Title: | Crystalline N-acetyl neuraminic acid derivatives and process for their preparation |
Abstract: | Two useful crystal hydrates of 5-acetamido-2,3,4,5-tetradeoxy-4-guanidino-D-glycero-D-galacto-non-2-enopy ranosonic acid have either a low or high aspect ratio. These crystalline N-acetyl neurominic acid derivatives are favored for pharmaceutical formulation because of their physical properties. For example, the low aspect ratio crystal has good flow properties, and the high aspect ratio crystal has a stable water content over time. |
Inventor(s): | Williamson; Christopher (Stevenage, GB), White; William James (Stevenage, GB), Patel; Vipulkumar (Stevenage, GB) |
Assignee: | Biota Scientific Management Pty Ltd. (Glen Iris, AU) |
Application Number: | 09/346,583 |
Patent Claim Types: see list of patent claims | Compound; Composition; Formulation; Use; Process; |
Drugs Protected by US Patent 6,294,572
Applicant | Tradename | Generic Name | Dosage | NDA | Approval Date | TE | Type | RLD | RS | Patent No. | Patent Expiration | Product | Substance | Delist Req. | Patented / Exclusive Use | Submissiondate |
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>Applicant | >Tradename | >Generic Name | >Dosage | >NDA | >Approval Date | >TE | >Type | >RLD | >RS | >Patent No. | >Patent Expiration | >Product | >Substance | >Delist Req. | >Patented / Exclusive Use | >Submissiondate |
Foreign Priority and PCT Information for Patent: 6,294,572
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
United Kingdom | 9325841 | Dec 17, 1993 |
International Family Members for US Patent 6,294,572
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
---|---|---|---|---|---|
African Regional IP Organization (ARIPO) | 541 | ⤷ Try a Trial | |||
African Regional IP Organization (ARIPO) | 9400705 | ⤷ Try a Trial | |||
African Regional IP Organization (ARIPO) | 9600810 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |