Assignee
CHEN YIYAN
US·8 granted patents·4 pending applications·19 citations·filing 2008–2012
Top patents by PatentIndex Score
12 records- 0191US8550161B2Shear-activated viscoelastic surfactant fluid and methodCHEN YIYAN·Filed 2012·Granted Oct 8, 2013·9 cites·32 claims
- 0276US8895481B2Viscoelastic surfactant acid treatmentCHEN YIYAN·Filed 2009·Granted Nov 25, 2014·8 cites·21 claims
- 0368US8240379B2Shear-activated viscoelastic surfactant fluid and methodCHEN YIYAN·Filed 2009·Granted Aug 14, 2012·2 cites·33 claims
- 0458US9574128B2Polymer delivery in well treatment applicationsCHEN YIYAN·Filed 2008·Granted Feb 21, 2017·0 cites·11 claims
- 0558US9102855B2Removal of crystallinity in guar based materials and related methods of hydration and subterranean applicationsCHEN YIYAN·Filed 2009·Granted Aug 11, 2015·0 cites·13 claims
- 0656US8093187B2Additive for viscoelastic fluidCHEN YIYAN·Filed 2008·Granted Jan 10, 2012·0 cites·18 claims
- 0750US8689874B2Visco-elastic surfactant spacersCHEN YIYAN·Filed 2008·Granted Apr 8, 2014·0 cites·6 claims
- 0848US9321951B2Hydrogen bonding material for oilfield applicationCHEN YIYAN·Filed 2010·Granted Apr 26, 2016·0 cites·18 claims
- 0941US2012305247A1Proppant pillar placement in a fracture with high solid content fluidCHEN YIYAN·Filed 2011·Application pending·0 cites
- 1041US2013220619A1Methods For High Solid Content Fluids in Oilfield ApplicationsCHEN YIYAN·Filed 2011·Application pending·0 cites
- 1141US2012305254A1Methods to improve stability of high solid content fluidCHEN YIYAN·Filed 2011·Application pending·0 cites
- 1240US2013319667A1Degradable latex and methodCHEN YIYAN·Filed 2011·Application pending·0 cites
Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →