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Inventor

Yiyan Chen

Inventor
Sugar Land, TX, US

Overview

59→
Patents
2005–2020
Patent span
Chemistry
Primary field (CPC C)

Patents· 59 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

C09Kprimary
C09KMaterials for miscellaneous applications, not provided for elsewhere48%
E21BEarth or rock drilling15%
Y10STechnical subjects covered by former uspc cross-reference art collections [xracs] and digests11%
E01DConstruction of bridges, elevated roadways or viaducts7%
Y10TTechnical subjects covered by former us classification4%
B01FMixing, e.g. dissolving, emulsifying or dispersing3%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form1%
C08BPolysaccharides1%
C08LCompositions of macromolecular compounds1%
PatentTitleYear
10,570,325Branched acid emulsifier compositions and methods of use202010,501,898Rigid hanger connecting structure and bridge structure201910,480,137Flexible cable connecting structure and bridge structure201910,429,257High-damping rubber isolation bearing, intelligent bearing and bearing monitoring system201910,351,762Hydrolyzable particle compositions, treatment fluids and methods20199,873,995Flexible pier20189,856,614'Aseismic combined pier'20189,850,423Hydrolyzable particle compositions, treatment fluids and methods20179,598,630'Well treatment with complexed metal crosslinkers'20179,574,128'Polymer delivery in well treatment applications'20179,388,335'Pickering emulsion treatment fluid'20169,334,438'Polymer delivery in well treatment applications'20169,321,951'Hydrogen bonding material for oilfield application'20169,133,387'Methods to improve stability of high solid content fluid'20159,102,855'Removal of crystallinity in guar based materials and related methods of hydration and subterranean applications'20159,085,976'Method and apparatus for modeling high solids content fluid fracturing'20159,080,440'Proppant pillar placement in a fracture with high solid content fluid'20159,040,468'Hydrolyzable particle compositions, treatment fluids and methods'20159,034,802'Friction reduction fluids'20158,997,292'Extended-span and alternatively-shaped arch bridge and construction method therefor'20158,916,506'High solids content slurries, systems and methods'20148,895,481'Viscoelastic surfactant acid treatment'20148,697,610'Well treatment with complexed metal crosslinkers'20148,689,874'Visco-elastic surfactant spacers'20148,636,071'System, method and apparatus for enhancing wellbore treatment fluid flexibility'20148,607,870'Methods to create high conductivity fractures that connect hydraulic fracture networks in a well'20138,550,161'Shear-activated viscoelastic surfactant fluid and method'20138,505,628'High solids content slurries, systems and methods'20138,397,816'System, method and apparatus for enhancing wellbore treatment fluid flexibility'20138,322,410'System, method and apparatus for enhancing wellbore treatment fluid flexibility'20128,240,379'Shear-activated viscoelastic surfactant fluid and method'20128,141,640'System, method and apparatus for enhancing wellbore treatment fluid flexibility'20128,093,187'Additive for viscoelastic fluid'20128,044,000'Polymer delivery in well treatment applications'20117,950,459'Using a biphasic solution as a recyclable coiled tubing cleanout fluid'20117,879,770'Oxidative internal breaker for viscoelastic surfactant fluids'20117,857,051'Internal breaker for oilfield treatments'20107,803,744'Carbon dioxide foamed fluids'20107,786,050'Well treatment with ionic polymer gels'20107,749,944'Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same'20107,741,252'Surfactants not toxic to bacteria'20107,678,745'Viscosity reduction'20107,677,311'Internal breaker for oilfield treatments'20107,565,929'Degradable material assisted diversion'20097,507,693'Viscoelastic surfactant fluid systems comprising an aromatic sulfonate and methods of using same'20097,469,438'Arch bridge'20087,431,087'Internal breaker for oilfield fluids'20087,402,549'Viscoelastic surfactant rheology modification'20087,398,826'Well treatment with dissolvable polymer'20087,387,986'Viscoelastic surfactant rheology modification'20087,387,987'Rheology modifiers'20087,378,378'Rheology enhancers'20087,345,012'Foamed viscoelastic surfactants'20087,341,980'Viscoelastic surfactant rheology modification'20087,320,952'Additive for viscoelastic fluid'20087,291,651'Carbon dioxide foamed fluids'20077,287,590'Internal breaker for oilfield fluids'20077,148,185'Viscoelastic surfactant fluids stable at high brine concentration and methods of using same'20066,883,608'Gravel packing method'2005

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2005–2019Patents assigned to SCHLUMBERGER TECHNOLOGY CORP (51)· patent assignee history
2005–2012Based in Richmond, TX, US· patent location history
2008–2017Patents assigned to CHEN YIYAN (22)· patent assignee history
2008–2019Based in Shenzhen, CN· patent location history
2009–2020Based in Sugar Land, TX, US· patent location history
2012–2015Patents assigned to ABAD CARLOS (5)· patent assignee history
2012–2017Patents assigned to LIN LIJUN (4)· patent assignee history
2015–2019Patents assigned to SHENZHEN MUNICIPAL DESIGN & RES INST CO LTD (6)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SCHLUMBERGER TECHNOLOGY CORP512005–2019
CHEN YIYANself222008–2017
SHENZHEN MUNICIPAL DESIGN & RES INST CO LTD62015–2019
ABAD CARLOS52012–2015
LIN LIJUN42012–2017
Locations
LocationPatentsSpan
Sugar Land, Texas, US312009–2020
Richmond, Texas, US212005–2012
Shenzhen, CN72008–2019