Assignee
GU YOUFAN
US·4 granted patents·44 citations·filing 2005–2011
Top patents by PatentIndex Score
4 records- 0188US8172197B2Fast-acting pneumatic diaphragm valveGU YOUFAN·Filed 2006·Granted May 8, 2012·28 cites·58 claims
- 0284US8671987B2Two-stage, slow-start valve apparatusGU YOUFAN·Filed 2010·Granted Mar 18, 2014·7 cites·11 claims
- 0384US8541716B2Heater control with high-limit thermal safety shutdownGU YOUFAN·Filed 2011·Granted Sep 24, 2013·9 cites·26 claims
- 0448US8679287B2Method and apparatus for preventing ALD reactants from damaging vacuum pumpsGU YOUFAN·Filed 2005·Granted Mar 25, 2014·0 cites·8 claims
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