28 Utility Patents
#123 in Foster City, CA
#15,746 in California
#52,701 in US
#101,989 in the World
Forward Citations = 184
Company Filing History:

Nanjing Zhengxiang Pharmaceuticals Co., Ltd.
Syntex (u.s.a.) Inc.
4. 1 out of 122
Teijin Pharma Limited
5. 1 out of 1,032

where one patent can have more than one assignee
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