US Patent 8430628 Pressure balanced low-friction seal
Is a
Date Filed
December 4, 2009
0
Date of Patent
April 30, 2013
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Patent Application Number
12630886
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Patent Inventor Names
Xiaoqing Zheng
0
Alexander Kimberley Simpson
0
Biao Fang
0
Keith Michael Parker
0
Norman Arnold Turnquist
0
Robbert Christiaan Pannekeet
0
Rodrigo Rodriguez Erdmenger
0
Patent Jurisdiction
Patent Number
Patent Primary Examiner
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