Inventor · disambiguated record
Stephen Masao Sakamoto
Also filed as: SAKAMOTO STEPHEN · SAKAMOTO STEPHEN M · SAKAMOTO STEPHEN MASAO
8 granted patents·2 pending applications·154 citations·filing 2000–2015
86Inventor score
Top patents by PatentIndex Score
10 records- 0190US6461115B1Suction chamber for a horizontal pumping systemWOOD GROUP ESP INC·Filed 2000·Granted Oct 8, 2002·39 cites·20 claims
- 0288US6837621B1Rotor bearing for increased lubricant flowWOOD GROUP ESP INC·Filed 2003·Granted Jan 4, 2005·28 cites·15 claims
- 0387US6450782B1Pump-motor assembly having a motor mountWOOD GROUP ESP INC·Filed 2000·Granted Sep 17, 2002·67 cites·8 claims
- 0477US10151341B2Load-limiting thrust bearing system and an associated method thereofGEN ELECTRIC·Filed 2015·Granted Dec 11, 2018·2 cites·30 claims
- 0563US7370697B1Thrust section wear preventorWOOD GROUP ESP INC·Filed 2004·Granted May 13, 2008·13 cites·13 claims
- 0660US10424988B2Downhole electric submersible pumps with high rotordynamic stability marginGEN ELECTRIC·Filed 2013·Granted Sep 24, 2019·1 cites·19 claims
- 0746US2017321711A1Isolated thrust chamber for esp seal sectionGE OIL & GAS ESP INC·Filed 2014·Application pending·0 cites
- 0840US2014174756A1Artificial lift method for low pressure sagd wellsGE OIL & GAS ESP INC·Filed 2012·Application pending·0 cites
- 0939US7048046B1High temperature mechanical sealWOOD GROUP ESP INC·Filed 2003·Granted May 23, 2006·4 cites·12 claims
- 1038US10801545B2Load-sharing bearing system and an associated method thereofGEN ELECTRIC·Filed 2015·Granted Oct 13, 2020·0 cites·18 claims
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