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For the Inventor, By the Inventor

Beijing, China

Yuzhang Liu

This inventor holds 3 USPTO granted patents and 3 published patent applications. Top assignee: Petrochina Company Limited. Active years: 2007-2014.

USPTO Granted Patents = 3 

% Patents Active = 100.0

Average Co-Inventor Count = 8.9

ph-index = 1

Forward Citations = 1(Granted Patents)


Company Filing History:

goldMedal3 out of 171 
 
Petrochina Company Limited
 patents

Years Active: 2007-2014

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3 patents (USPTO):Explore Patents
1. 8822389 - Dendritic comb-shaped polymer thickening agent, preparaton of the same and application thereof (2014-09-02),
2. 7867952 - Flexible polymer, particles prepared therefrom and process for preparing the same (2011-01-11),
3. 7304116 - Braided comb-shaped salt-resistant polymer thickening agent (2007-12-04),

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Profile summary based on public USPTO records.
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