The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 04, 2012
Filed:
Sep. 21, 2009
Applicants:
Jie Luo, Chongqing, CN;
Meng Lin, Chongqing, CN;
Zhengyong Zhu, Chongqing, CN;
Junlai Luo, Chongqing, CN;
Wenrun YE, Chongqing, CN;
Yongmei Qin, Chongqing, CN;
Jie Deng, Chongqing, CN;
Inventors:
Jie Luo, Chongqing, CN;
Meng Lin, Chongqing, CN;
Zhengyong Zhu, Chongqing, CN;
Junlai Luo, Chongqing, CN;
Wenrun Ye, Chongqing, CN;
Yongmei Qin, Chongqing, CN;
Jie Deng, Chongqing, CN;
Assignee:
Chongqing Pharmaceutical Research Institute Co., Ltd., Chongqing, CN;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
Abstract
Three new crystalline forms of pemetrexed diacid, preparation methods and uses thereof are disclosed. These preparation processes are simple and have better practicality.