Inventor · disambiguated record
Dadong Li
Also filed as: LI DADONG
23 granted patents·7 pending applications·150 citations·filing 1997–2023
94Inventor score
Files withCHINA PETROLEUM & CHEM CORP8PANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD4CHINA PETROLEUM & CHEMICAL3CHINA PETROCHEMICAL CORP2GAO YONGCAN2
Top patents by PatentIndex Score
30 records- 0193US9657236B2Process for hydrotreating heavy raw oilsCHINA PETROLEUM & CHEM CORP·Filed 2013·Granted May 23, 2017·28 cites·19 claims
- 0287US8529753B2Combined process for hydrotreating and catalytic cracking of residueNIU CHUANFENG·Filed 2007·Granted Sep 10, 2013·31 cites·28 claims
- 0382US10196781B2Hypereutectoid steel rail and preparation method thereofPANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD·Filed 2016·Granted Feb 5, 2019·1 cites·17 claims
- 0481US6518219B1Catalyst for hydrorefining fraction oils, its carrier and preparationCHINA PETROCHEMICAL CORP·Filed 2000·Granted Feb 11, 2003·27 cites·26 claims
- 0580US8697598B2Hydrogenation catalyst and use thereofLONG XIANGYUN·Filed 2006·Granted Apr 15, 2014·12 cites·35 claims
- 0678US8778170B2Process for producing light olefins and aromaticsLONG JUN·Filed 2005·Granted Jul 15, 2014·7 cites·21 claims
- 0774US10870165B2Mobile flash butt welding method for 136RE+SS heat-treated railPANGANG GROUP RES INSTITUTE CO LTD·Filed 2018·Granted Dec 22, 2020·1 cites·4 claims
- 0871US8334231B2Hydrocracking catalyst, the preparation process and use of the sameMAO YICHAO·Filed 2006·Granted Dec 18, 2012·4 cites·16 claims
- 0967US11866801B2Method for optimizing microstructure of rail welded jointPANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD·Filed 2021·Granted Jan 9, 2024·0 cites·9 claims
- 1065US7745372B2Catalyst for selective hydrogenation of olefins and its preparation as well as useCHINA PETROLEUM & CHEMICAL·Filed 2004·Granted Jun 29, 2010·11 cites·10 claims
- 1158US9771529B2Process for producing light olefins and aromaticsCHINA PETROLEUM & CHEM CORP·Filed 2014·Granted Sep 26, 2017·0 cites·8 claims
- 1258US2022064746A1POST-WELD HEAT TREATMENT METHOD FOR 1,300 MPa-LEVEL LOW-ALLOY HEAT TREATED STEEL RAILPANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD·Filed 2021·Application pending·0 cites
- 1355US7341657B2Process for reducing sulfur and olefin contents in gasolineCHINA PETROLEUM & CHEMICAL·Filed 2003·Granted Mar 11, 2008·7 cites·12 claims
- 1454US2025360494A1Hydrogenation catalyst, and preparation and use thereofCHINA PETROLEUM & CHEM CORP·Filed 2023·Application pending·0 cites
- 1552US11041131B2Process for treating gasolineCHINA PETROLEUM & CHEM CORP·Filed 2017·Granted Jun 22, 2021·0 cites·18 claims
- 1649US11439989B2Hydrofining catalyst, its preparation and application thereofCHINA PETROLEUM & CHEM CORP·Filed 2019·Granted Sep 13, 2022·0 cites·21 claims
- 1748US9260667B2Combined process of hydrotreating and catalytic cracking of hydrocarbon oilsGAO YONGCAN·Filed 2012·Granted Feb 16, 2016·0 cites·21 claims
- 1846US12467004B2Process and system for hydrotreating deoiled asphaltCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Nov 11, 2025·0 cites·40 claims
- 1946US12331256B2Process and system for processing aromatics-rich fraction oilCHINA PETROLEUM & CHEM CORP·Filed 2020·Granted Jun 17, 2025·0 cites·20 claims
- 2046US9309467B2Integrated process for hydrogenation and catalytic cracking of hydrocarbon oilGAO YONGCAN·Filed 2008·Granted Apr 12, 2016·0 cites·39 claims
- 2143US10214799B2Heat treatment method for increasing the depth of hardening layer in a steel rail and steel rail obtained with the methodPANGANG GROUP PANZHIHUA IRON & STEEL RES INSTITUTE CO LTD·Filed 2015·Granted Feb 26, 2019·0 cites·6 claims
- 2242US11365360B2Process for converting inferior feedstock oilCHINA PETROLEUM & CHEM CORP·Filed 2016·Granted Jun 21, 2022·0 cites·19 claims
- 2342US5972832ADistillate hydrocracking catalyst and process for the preparation of the sameRES INST OF PETROLEUM PROC·Filed 1997·Granted Oct 26, 1999·12 cites·12 claims
- 2442US2008190811A1Hydrocracking Catalyst, a Process For Producing the Same, and the Use of the SameCHINA PETROLEUM & CHEMICAL·Filed 2006·Application pending·0 cites
- 2541US2013193223A1Steel rail for high speed and quasi-high speed railways and method of manufacturing the sameMEI DONGSHENG·Filed 2011·Application pending·0 cites
- 2640US5914290ADistillate hydrofining catalyst and a process for the preparation of the sameCHINA PETROCHEMICAL CORP·Filed 1997·Granted Jun 22, 1999·9 cites·13 claims
- 2739US8883669B2Hydrocracking catalyst, a process for producing the same, and the use of the sameMAO YICHAO·Filed 2010·Granted Nov 11, 2014·0 cites·18 claims
- 2836US2015322553A1Bainitic steel rail containing trace amounts of carbides and producing method of the samePANGANG GROUP PANZHIHUA IRON & STEEL RES INST CO LTD·Filed 2015·Application pending·0 cites
- 2935US2016194730A1High-impact-toughness steel rail and production method thereofPANGANG GROUP PANZHIHUA IRON & STEEL RES INST CO L·Filed 2016·Application pending·0 cites
- 3032US2016060736A1Pearlitic steel rail with high strength and toughness and producing method thereofPANGANG GROUP PANZHIHUA IRON & STEEL RES INST CO L·Filed 2015·Application pending·0 cites
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