Inventor · disambiguated record
Zen-Yu Chang
Also filed as: CHANG ZEN-YU
12 granted patents·9 pending applications·127 citations·filing 1994–2017
89Inventor score
Top patents by PatentIndex Score
21 records- 0192US6066638AFungicidal pyrimidinonesDU PONT·Filed 1996·Granted May 23, 2000·71 cites·17 claims
- 0289US6245770B1Fungicidal pyrimidinonesDU PONT·Filed 2000·Granted Jun 12, 2001·27 cites·17 claims
- 0384US10597576B2Lubricant for water based drilling fluidLUBRIZOL CORP·Filed 2016·Granted Mar 24, 2020·2 cites·14 claims
- 0471US5747497AFungicidal fused bicyclic pyrimidinonesDU PONT·Filed 1994·Granted May 5, 1998·12 cites·19 claims
- 0570US7335794B2Polythiaether compounds and their use as corrosion inhibitorsGE BETZ INC·Filed 2005·Granted Feb 26, 2008·1 cites·2 claims
- 0659US5945423AFungicidal fused bicyclic pyrimidinonesDU PONT·Filed 1998·Granted Aug 31, 1999·7 cites·10 claims
- 0758US6872230B2Lubricity additives for low sulfur hydrocarbon fuelsBETZDEARBORN INC·Filed 2002·Granted Mar 29, 2005·2 cites·39 claims
- 0858US2007044375A1Aviation fuel cold flow additives and compositionsGEN ELECTRIC·Filed 2006·Application pending·0 cites
- 0958US2007044374A1Aviation fuel cold flow additives and compositionsGEN ELECTRIC·Filed 2006·Application pending·0 cites
- 1055US9873847B2Ion tolerant corrosion inhibitors and inhibitor combinations for fuelsLUBRIZOL CORP·Filed 2014·Granted Jan 23, 2018·0 cites·16 claims
- 1154US2005126073A1Lubricity additives for low sulfur hydrocarbon fuelsBETZDEARBORN INC·Filed 2005·Application pending·0 cites
- 1252US8518238B2Processes for inhibiting fouling in hydrocarbon processingLINK JOHN·Filed 2009·Granted Aug 27, 2013·0 cites·19 claims
- 1351US2004250468A1Aviation fuel cold flow additives and compositionsGEN ELECTRIC·Filed 2003·Application pending·0 cites
- 1449US2016215204A1Viscoelastic fluidLUBRIZOL CORP·Filed 2014·Application pending·0 cites
- 1548US6255311B1Fungicidal fused bicyclic pyrimidinonesDU PONT·Filed 1999·Granted Jul 3, 2001·5 cites·5 claims
- 1645US6974553B2Polythiaether compounds and their use as corrosion inhibitorsGE BETZ INC·Filed 2002·Granted Dec 13, 2005·0 cites·6 claims
- 1742US2013137608A1Methods of Removing Deposits of Oil and Gas ApplicationsCHANG ZEN-YU·Filed 2011·Application pending·0 cites
- 1842US2014163270A1Hydroprocessing Of Biorenewable FeedstocksCHANG ZEN-YU·Filed 2012·Application pending·0 cites
- 1941US10745634B2Gas hydrate inhibitorsLUBRIZOL CORP·Filed 2017·Granted Aug 18, 2020·0 cites·22 claims
- 2040US2016230077A1Gas hydrate inhibitorsLUBRIZOL CORP·Filed 2014·Application pending·0 cites
- 2139US2018072937A1Additive compositions for drilling fluids and methods for their useLUBRIZOL CORP·Filed 2016·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →