CN Patent

CN102020609A — 托伐普坦晶体或无定形物及其制备方法

Assigned to BENCAO TIANYUAN PHARMACEUTICAL RESEARCH INST BEIJING · Expires 2011-04-20 · 15y expired

What this patent protects

本发明公开了托伐普坦新晶型或无定形物及其制备方法，该托伐普坦形态经过X-射线粉末图谱方法或KBr压片-透射法测定红外光谱；本发明新形态的托伐普坦制备的制剂具有更好的溶出度、稳定性，更加适合发作期的患者使用。

USPTO Abstract

本发明公开了托伐普坦新晶型或无定形物及其制备方法，该托伐普坦形态经过X-射线粉末图谱方法或KBr压片-透射法测定红外光谱；本发明新形态的托伐普坦制备的制剂具有更好的溶出度、稳定性，更加适合发作期的患者使用。

Drugs covered by this patent

Patent Metadata

Patent number
CN102020609A
Jurisdiction
CN
Classification
—
Expires
2011-04-20
Drug substance claim
No
Drug product claim
No
Assignee
BENCAO TIANYUAN PHARMACEUTICAL RESEARCH INST BEIJING
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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