Assignee
DUAN PING
US·6 granted patents·3 pending applications·9 citations·filing 2007–2019
Top patents by PatentIndex Score
9 records- 0181US10738560B2Packers having controlled swelling and methods of manufacturing thereofDUAN PING·Filed 2017·Granted Aug 11, 2020·3 cites·16 claims
- 0275US8739408B2Shape memory material packer for subterranean useDUAN PING·Filed 2011·Granted Jun 3, 2014·5 cites·20 claims
- 0373US10329407B2Degradable extrusion resistant compositions and articles of manufactureDUAN PING·Filed 2015·Granted Jun 25, 2019·1 cites·21 claims
- 0459US8940841B2Polyarylene compositions, methods of manufacture, and articles thereofDUAN PING·Filed 2012·Granted Jan 27, 2015·0 cites·34 claims
- 0557US8829119B2Polyarylene compositions for downhole applications, methods of manufacture, and uses thereofDUAN PING·Filed 2011·Granted Sep 9, 2014·0 cites·32 claims
- 0655US11261283B2Polyurethane cementing wiper plugsDUAN PING·Filed 2019·Granted Mar 1, 2022·0 cites·14 claims
- 0751US2010236794A1Downhole sealing devices having a shape-memory material and methods of manufacturing and using sameDUAN PING·Filed 2010·Application pending·0 cites
- 0841US2009084539A1Downhole sealing devices having a shape-memory material and methods of manufacturing and using sameDUAN PING·Filed 2007·Application pending·0 cites
- 0933US2012305238A1High Temperature Crosslinked Polysulfones Used for Downhole DevicesDUAN PING·Filed 2011·Application pending·0 cites
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