Details for Patent: 6,649,180
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Summary for Patent: 6,649,180
Title: | Hard capsule formed of cellulose ether film with a specific content of methoxyl and hydroxypropoxyl groups |
Abstract: | A cellulose ether film is formed of a composition comprising a cellulose ether as a base in which some of the hydrogen atoms of cellulosic hydroxyl groups are replaced by alkyl groups and/or hydroxyalkyl groups, a gelling agent, and a gelling aid. The total content of alkoxyl and hydroxyalkoxyl groups in the cellulose ether is limited to 23-37.6% by weight, which is effective for preventing the gelling aid from precipitating out and maintaining a favorable outer appearance during long-term storage. |
Inventor(s): | Matsuura; Seinosuke (Kyoto, JP), Tanjoh; Masaru (Sakurai, JP) |
Assignee: | Shionogi Qualicaps Co., Ltd. (Yamatokoriyama, JP) |
Application Number: | 09/549,205 |
Patent Litigation and PTAB cases: | See patent lawsuits and PTAB cases for patent 6,649,180 |
Patent Claim Types: see list of patent claims | Composition; Compound; Dosage form; |
Drugs Protected by US Patent 6,649,180
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: 6,649,180
Foriegn Application Priority Data | ||
Foreign Country | Foreign Patent Number | Foreign Patent Date |
Japan | 11-106689 | Apr 14, 1999 |
International Family Members for US Patent 6,649,180
Country | Patent Number | Estimated Expiration | Supplementary Protection Certificate | SPC Country | SPC Expiration |
---|---|---|---|---|---|
Germany | 60001283 | ⤷ Try a Trial | |||
European Patent Office | 1045000 | ⤷ Try a Trial | |||
Spain | 2191595 | ⤷ Try a Trial | |||
Japan | 2000297102 | ⤷ Try a Trial | |||
Japan | 3716901 | ⤷ Try a Trial | |||
>Country | >Patent Number | >Estimated Expiration | >Supplementary Protection Certificate | >SPC Country | >SPC Expiration |