Inventor · disambiguated record
Weiguo Cheng
Also filed as: CHENG WEIGUO
37 granted patents·8 pending applications·242 citations·filing 2007–2025
97Inventor score
Top patents by PatentIndex Score
45 records- 0194US8465623B2Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermakingZHAO YULIN·Filed 2011·Granted Jun 18, 2013·26 cites·19 claims
- 0294US8088213B2Controllable filler prefloculation using a dual polymer systemCHENG WEIGUO·Filed 2009·Granted Jan 3, 2012·29 cites·14 claims
- 0392US8172983B2Controllable filler prefloculation using a dual polymer systemCHENG WEIGUO·Filed 2007·Granted May 8, 2012·22 cites·16 claims
- 0492US8088250B2Method of increasing filler content in papermakingCHENG WEIGUO·Filed 2008·Granted Jan 3, 2012·15 cites·18 claims
- 0591US11155478B2Method for improving overflow clarity in production of coalECOLAB USA INC·Filed 2017·Granted Oct 26, 2021·8 cites·19 claims
- 0691US10427950B2Recovery of mining processing product using boronic acid-containing polymersECOLAB USA INC·Filed 2015·Granted Oct 1, 2019·4 cites·16 claims
- 0791US8882964B2Furnish pretreatment to improve paper strength aid performance in papermakingZHAO YULIN·Filed 2012·Granted Nov 11, 2014·17 cites·12 claims
- 0890US8894817B1Wet end chemicals for dry end strengthECOLAB USA INC·Filed 2014·Granted Nov 25, 2014·18 cites·10 claims
- 0989US9034145B2Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention, wet strength, and dry strength in papermaking processECOLAB USA INC·Filed 2013·Granted May 19, 2015·17 cites·15 claims
- 1088US9487916B2Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermakingNALCO CO·Filed 2013·Granted Nov 8, 2016·5 cites·19 claims
- 1188US2024262802A1Low molecular weight dry powder polymer for use as paper-making dry strength agentECOLAB USA INC·Filed 2024·Application pending·0 cites
- 1287US8858759B1Enhancement of sheet dewatering using soy flour or soy proteinECOLAB USA INC·Filed 2013·Granted Oct 14, 2014·12 cites·15 claims
- 1386US8382950B2Recycling of waste coating colorNALCO CO·Filed 2010·Granted Feb 26, 2013·11 cites·12 claims
- 1485US9567708B2Wet end chemicals for dry end strength in paperECOLAB USA INC·Filed 2014·Granted Feb 14, 2017·8 cites·17 claims
- 1584US10920065B2Low molecular weight dry powder polymer for use as paper-making dry strength agentECOLAB USA INC·Filed 2017·Granted Feb 16, 2021·1 cites·13 claims
- 1684US8709208B2Method to increase dewatering, sheet wet web strength and wet strength in papermakingZHAO YULIN·Filed 2012·Granted Apr 29, 2014·10 cites·14 claims
- 1783US9951475B2Wet end chemicals for dry end strength in paperECOLAB USA INC·Filed 2017·Granted Apr 24, 2018·4 cites·15 claims
- 1883US8647472B2Method of increasing filler content in papermakingCHENG WEIGUO·Filed 2010·Granted Feb 11, 2014·9 cites·23 claims
- 1982US8747617B2Controllable filler prefloculation using a dual polymer systemCHENG WEIGUO·Filed 2012·Granted Jun 10, 2014·7 cites·18 claims
- 2081US9181657B2Method of increasing paper strength by using natural gums and dry strength agent in the wet endNALCO CO·Filed 2012·Granted Nov 10, 2015·6 cites·12 claims
- 2180US11208332B2Recovery of mining processing product using boronic acid-containing polymersECOLAB USA INC·Filed 2019·Granted Dec 28, 2021·1 cites·19 claims
- 2278US9506202B2Furnish pretreatment to improve paper strength aid performance in papermakingNALCO CO·Filed 2014·Granted Nov 29, 2016·5 cites·7 claims
- 2377US10145067B2Method of improving dewatering efficiency, increasing sheet wet web strength, increasing sheet wet strength and enhancing filler retention in papermakingECOLAB USA INC·Filed 2016·Granted Dec 4, 2018·1 cites·12 claims
- 2474US8778140B2Preflocculation of fillers used in papermakingCHENG WEIGUO·Filed 2012·Granted Jul 15, 2014·4 cites·13 claims
- 2570US11939309B2Low molecular weight dry powder polymer for use as paper-making dry strength agentECOLAB USA INC·Filed 2020·Granted Mar 26, 2024·0 cites·9 claims
- 2666US10132040B2Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking processECOLAB USA INC·Filed 2016·Granted Nov 20, 2018·1 cites·6 claims
- 2766US2024068168A1Compositions and methods for papermakingECOLAB USA INC·Filed 2023·Application pending·0 cites
- 2863US9303360B2Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking processECOLAB USA INC·Filed 2013·Granted Apr 5, 2016·1 cites·12 claims
- 2961US2025263562A1Compositions and methods for the removal of paint from water in automotive paint boothsECOLAB USA INC·Filed 2025·Application pending·0 cites
- 3058US2024344271A1Use of modified lignin as a wet end strength additiveECOLAB USA INC·Filed 2022·Application pending·0 cites
- 3156US11708481B2Solution comprising an associative polymer and a cyclodextrin polymerECOLAB USA INC·Filed 2018·Granted Jul 25, 2023·0 cites·13 claims
- 3255US11299450B2System and process for co-producing dimethyl carbonate and ethylene glycolINST PROCESS ENG CAS·Filed 2017·Granted Apr 12, 2022·0 cites·23 claims
- 3354US9410288B2Use of nanocrystaline cellulose and polymer grafted nanocrystaline cellulose for increasing retention in papermaking processECOLAB USA INC·Filed 2013·Granted Aug 9, 2016·0 cites·8 claims
- 3454US2023313467A1Strength improvement via sprayboom applicationECOLAB USA INC·Filed 2021·Application pending·0 cites
- 3553US11035080B2Boronic acid containing polymers for papermaking processECOLAB USA INC·Filed 2016·Granted Jun 15, 2021·0 cites·15 claims
- 3651US11718696B2Process for fast dissolution of powder comprising low molecular weight acrylamide-based polymerECOLAB USA INC·Filed 2018·Granted Aug 8, 2023·0 cites·15 claims
- 3751US2015034563A1Enhancement of wastewater sludge dewatering using soy flour or soy proteinECOLAB USA INC·Filed 2013·Application pending·0 cites
- 3849US11214926B2Dry polymer application methodECOLAB USA INC·Filed 2018·Granted Jan 4, 2022·0 cites·16 claims
- 3949US10035946B2Hydrazide crosslinked polymer emulsions for use in crude oil recoveryECOLAB USA INC·Filed 2017·Granted Jul 31, 2018·0 cites·19 claims
- 4048US9752283B2Anionic preflocculation of fillers used in papermakingNALCO CO·Filed 2014·Granted Sep 5, 2017·0 cites·13 claims
- 4148US2013153506A1Method to improve clarification performance in wastewater treatment applicationsDUGGIRALA PRASAD·Filed 2011·Application pending·0 cites
- 4246US10000393B2Enhancement of dewatering using soy flour or soy proteinECOLAB USA INC·Filed 2015·Granted Jun 19, 2018·0 cites·14 claims
- 4344US2022274944A1Composite absorbent and use thereofINST PROCESS ENG CAS·Filed 2020·Application pending·0 cites
- 4440US10697121B2Papermaking process of increasing ash content of a paper product and a paper product obtained by the sameECOLAB USA INC·Filed 2015·Granted Jun 30, 2020·0 cites·14 claims
- 4529US8658842B2Process for producing ethylene glycol catalyzed by ionic liquidZHANG SUOJIANG·Filed 2010·Granted Feb 25, 2014·0 cites·17 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →