Changzhou Pharmaceutical Factory

Calculating rank

USPTO Granted Patents = 3

% Expired Patents = 33.3

EPO Patents = 1

Forward Citations = 0

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6 inventors (with patents filed for the assignee):

Bing Wang (3 out of 34 patents)

Benshun Chen (2 out of 2 patents)

Xiaofeng Jin (2 out of 2 patents)

4. Lin Zou (2 out of 2 patents)

5. Xiaopeng Ma (1 out of 1 patent)

6. Shaoqi Xi (1 out of 1 patent)

3 patents: Sort by Forward Citations

1. 8765947 - Preparation method of Rosuvastatin calcium and its intermediates (2014-07-01),

2. 8653265 - Preparation method of rosuvastatin calcium and its intermediates (2014-02-18),

3. 7608587 - Exendin 4 polypeptide fragment (2009-10-27),

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USPTO Data Jan 1 1976 - Oct 27 2026

3 Patents

#201 in Jiangsu

#8,379 in China

Jiangsu, China

Changzhou Pharmaceutical Factory

Forward Citations = 0

6 inventors:

Bing Wang (3 out of 34 patents)

Benshun Chen (2 out of 2 patents)

Xiaofeng Jin (2 out of 2 patents)

4. Lin Zou (2 out of 2 patents)

5. Xiaopeng Ma (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Changzhou Pharmaceutical Factory. Retrieved from https://idiyas.com/company/changzhou-pharmaceutical-factory

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

1 patent (EPO):

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]