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Legal status
Patent not validated
| (51) | INT.CL. | A61K 9/08 | |
| A61K 47/10 | |||
| A61K 47/14 | |||
| A61K 47/44 | |||
| A61K 31/135 | |||
| A61K 31/245 | |||
| A61K 31/381 | |||
| A61K 31/42 | |||
| A61K 31/445 | |||
| A61K 31/47 | |||
| A61P 23/02 | |||
| A61P 25/04 | |||
| A61P 29/00 |
| (11) | Number of the document | 2949316 |
| (13) | Kind of document | T |
| (96) | European patent application number | 13872302.8 |
| Date of filing the European patent application | 2013-04-10 | |
| (97) | Date of publication of the European application | 2015-12-02 |
| (45) | Date of publication and mention of the grant of the patent | 2020-07-01 |
| (46) | Date of publication of the claims translation |
| (86) | Number | PCT/CN2013/074010 |
| Date | 2013-04-10 |
| (87) | Number | WO 2014/114032 |
| Date | 2014-07-31 |
| (30) | Number | Date | Country code |
| 201310022657 | 2013-01-22 | CN |
| (72) |
CHEN, Tao, CN
LU, Wudang, CN
YU, Weiping, CN
GAO, Jianli, CN
KONG, Danfeng, CN
ZHAO, Qingchuan, CN
WANG, Weijiao, CN
WU, Qinyuan, CN
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| (73) |
Xi`an Libang Pharmaceutical Co., Ltd.,
No. 22, Keji 1st Road High-Tech Zone Xi`an City, Shaanxi Province 710075,
CN
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| (54) | NON-ADDICTIVE ANALGESIC SUSTAINED-RELEASE DRUG DELIVERY SYSTEM AND PREPARATION METHOD THEREOF |
| NON-ADDICTIVE ANALGESIC SUSTAINED-RELEASE DRUG DELIVERY SYSTEM AND PREPARATION METHOD THEREOF |