Inventor · disambiguated record
Chang-Dong Feng
Also filed as: FENG CHANG D · FENG CHANG-DONG
28 granted patents·15 pending applications·175 citations·filing 1998–2025
95Inventor score
Files withROSEMOUNT ANALYTICAL INC21BROADLEY-JAMES CORP7ROSEMOUNT INC5FENG CHANG-DONG4BENTON BARRY W1
Top patents by PatentIndex Score
43 records- 0192US8828202B2Detachable dissolved oxygen sensor for single use bioreactor/mixerFENG CHANG-DONG·Filed 2011·Granted Sep 9, 2014·15 cites·11 claims
- 0288US8900855B2pH sensor integration to single use bioreactor/mixerFENG CHANG-DONG·Filed 2011·Granted Dec 2, 2014·12 cites·14 claims
- 0385US9945830B2Standard solution with cleaning reagent for wet chemistry analyzerROSEMOUNT ANALYTICAL INC·Filed 2016·Granted Apr 17, 2018·2 cites·10 claims
- 0484US7078909B2Flow-through conductivity sensorROSEMOUNT ANALYTICAL INC·Filed 2003·Granted Jul 18, 2006·25 cites·13 claims
- 0583US9868930B2pH sensor for single use equipmentROSEMOUNT ANALYTICAL INC·Filed 2016·Granted Jan 16, 2018·4 cites·10 claims
- 0682US8063644B2Impedance measurement of a pH electrodeREZVANI BEHZAD·Filed 2007·Granted Nov 22, 2011·13 cites·11 claims
- 0780US2025334543A1Sensing element for use with media-preserving storage and calibration chamberBROADLEY JAMES CORP·Filed 2024·Application pending·0 cites
- 0880US2025035579A1Sensing element for use with media-preserving storage and calibration chamberBROADLEY JAMES CORP·Filed 2024·Application pending·0 cites
- 0979US6602401B1Amperometric sensor for low level dissolved oxygen with self-depleting sensor designROSEMOUNT ANALYTICAL INC·Filed 2000·Granted Aug 5, 2003·15 cites·7 claims
- 1078US12313586B2Sensing element for use with media-preserving storage and calibration chamberBROADLEY JAMES CORP·Filed 2018·Granted May 27, 2025·1 cites·19 claims
- 1177US9029130B2Unitary plastic conductivity sensorFENG CHANG-DONG·Filed 2011·Granted May 12, 2015·3 cites·16 claims
- 1276US6894502B2pH sensor with internal solution groundROSEMOUNT ANALYTICAL INC·Filed 2002·Granted May 17, 2005·23 cites·12 claims
- 1373US7640784B2System for calibrating dissolved oxygen analyzers using compressed fluids during cleaningROSEMOUNT ANALYTICAL INC·Filed 2006·Granted Jan 5, 2010·3 cites·9 claims
- 1472US10119951B2On-line wet chemistry analyzerROSEMOUNT INC·Filed 2015·Granted Nov 6, 2018·1 cites·7 claims
- 1572US2025277769A1Sensor with rotatable sensor element and pressure equalization mechanismBROADLEY JAMES CORP·Filed 2025·Application pending·0 cites
- 1671US7323887B2Conductivity sensor and manufacturing method thereforROSEMOUNT ANALYTICAL INC·Filed 2006·Granted Jan 29, 2008·6 cites·15 claims
- 1771US7087150B2Chloramine amperometric sensorROSEMOUNT ANALYTICAL INC·Filed 2002·Granted Aug 8, 2006·9 cites·16 claims
- 1870US12055511B2Sensing element for use with media-preserving storage and calibration chamberBROADLEY JAMES CORP·Filed 2021·Granted Aug 6, 2024·0 cites·22 claims
- 1966US12259354B2Sensor with rotatable sensor element and pressure equalization mechanismBROADLEY JAMES CORP·Filed 2020·Granted Mar 25, 2025·0 cites·17 claims
- 2066US7208071B2Amperometric sensor for low level dissolved oxygen with self-depleting sensor designROSEMOUNT ANALYTICAL INC·Filed 2003·Granted Apr 24, 2007·5 cites·7 claims
- 2163US7837847B2High purity water pH sensor with shielded flowing liquid junctionROSENMOUNT ANALYTICAL INC·Filed 2007·Granted Nov 23, 2010·3 cites·10 claims
- 2261US7790006B2Free chlorine sensorROSEMOUNT ANALYTICAL INC·Filed 2004·Granted Sep 7, 2010·6 cites·11 claims
- 2360US6265750B1Electrochemical gas sensor and method of making the sameTELEDYNE TECH INC·Filed 1999·Granted Jul 24, 2001·22 cites·31 claims
- 2459US12391908B2Reinforced gas-permeable membrane and reinforced gas-permeable well utilizing sameBROADLEY JAMES CORP·Filed 2019·Granted Aug 19, 2025·0 cites·22 claims
- 2558US11613724B2Single-use bioreactor sensor interfaceROSEMOUNT INC·Filed 2016·Granted Mar 28, 2023·0 cites·4 claims
- 2654US11384325B2Single-use bioreactor port with multiple sensorsROSEMOUNT INC·Filed 2016·Granted Jul 12, 2022·0 cites·15 claims
- 2751US9891162B2Photometric measurement cellROSEMOUNT ANALYTICAL INC·Filed 2014·Granted Feb 13, 2018·0 cites·8 claims
- 2850US10788416B2Multiple wavelength light source for colorimetric measurementROSEMOUNT ANALYTICAL INC·Filed 2014·Granted Sep 29, 2020·0 cites·7 claims
- 2950US10677717B2Colorimetric analyzer with reagent diagnosticsROSEMOUNT INC·Filed 2017·Granted Jun 9, 2020·0 cites·8 claims
- 3050US2010084285A1Process analytic sensor with moisture-scavenging electrode backfillBENTON BARRY W·Filed 2008·Application pending·0 cites
- 3149US2008283399A1Potentiometric process analytic sensor with isolated temperature sensorROSEMOUNT ANALYTICAL INC·Filed 2008·Application pending·0 cites
- 3247US2014182358A1Gas detection system with moisture removalROSEMOUNT ANALYTICAL INC·Filed 2013·Application pending·0 cites
- 3347US2007158211A1Arsenic measurement using anodic stripping voltammetryROSEMOUNT ANALYTICAL INC·Filed 2007·Application pending·0 cites
- 3445US11125696B2Colorimetric analyzer with de-bubblingROSEMOUNT INC·Filed 2015·Granted Sep 21, 2021·0 cites·8 claims
- 3545US2006163088A1Amperometric sensor with counter electrode isolated from fill solutionXU JOSHUA·Filed 2006·Application pending·0 cites
- 3645US2006228804A1Modified ruthenium complex luminescence dye for oxygen sensingROSEMOUNT ANALYTICAL INC·Filed 2006·Application pending·0 cites
- 3745US2006241351A1Integrated optical device for luminescence sensingROSEMOUNT ANALYTICAL INC·Filed 2006·Application pending·0 cites
- 3844US2006055927A1Turbidity sensorROSEMOUNT ANALYTICAL INC·Filed 2005·Application pending·0 cites
- 3943US2006278529A1Electrochemical cell with improved flowing liquid junctionROSEMOUNT ANALYTICAL INC·Filed 2006·Application pending·0 cites
- 4043US2005156584A1Ion sensitive field effect transistor (ISFET) sensor with improved gate configurationROSEMOUNT ANALYTICAL INC·Filed 2005·Application pending·0 cites
- 4143US2008297179A1Multilayer manufacturing for conductivity sensorFENG CHANG-DONG·Filed 2008·Application pending·0 cites
- 4241US2017059518A1SINGLE-USE pH SENSOR STORAGE SOLUTIONROSEMOUNT ANALYTICAL INC·Filed 2016·Application pending·0 cites
- 4335US6019879AElectrochemical gas sensorTELEDYNE IND·Filed 1998·Granted Feb 1, 2000·7 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →