Inventor · disambiguated record
Hongchang Duan
Also filed as: DUAN HONGCHANG
9 granted patents·1 pending application·9 citations·filing 2009–2024
78Inventor score
Top patents by PatentIndex Score
10 records- 0178US9840422B2Magnesium modified ultra-stable rare earth Y-type molecular sieve and preparation method thereforGAO XIONGHOU·Filed 2012·Granted Dec 12, 2017·4 cites·20 claims
- 0272US9844772B2Heavy oil catalytic cracking catalyst and preparation method thereforGAO XIONGHOU·Filed 2012·Granted Dec 19, 2017·2 cites·20 claims
- 0371US9889439B2High light received heavy oil catalytic cracking catalyst and preparation method thereforGAO XIONGHOU·Filed 2012·Granted Feb 13, 2018·2 cites·22 claims
- 0463US2024316541A1Metal modified zsm-5 molecular sieve catalyst, preparation method and application thereofPETROCHINA CO LTD·Filed 2024·Application pending·0 cites
- 0556US8545803B2Modified molecular sieve characterized by improved sodium-contamination-resisting activity and preparation method thereofGAO XIONGHOU·Filed 2009·Granted Oct 1, 2013·1 cites·9 claims
- 0647US9895686B2Double-component modified molecular sieve with improved hydrothermal stability and production method thereofGAO XIONGHOU·Filed 2009·Granted Feb 20, 2018·0 cites·1 claims
- 0742US11084024B2Method for modifying molecular sieve and a catalytic cracking catalyst containing the molecular sievePETROCHINA CO LTD·Filed 2016·Granted Aug 10, 2021·0 cites·20 claims
- 0841US9789475B2Ultra-stable rare earth Y-type molecular sieve and preparation method thereforGAO XIONGHOU·Filed 2012·Granted Oct 17, 2017·0 cites·16 claims
- 0939US9968915B2Phosphorus-containing ultrastable Y-type rare earth molecular sieve and preparation method thereforGAO XIONGHOU·Filed 2012·Granted May 15, 2018·0 cites·20 claims
- 1037US9968918B2Catalytic cracking catalyst for high-efficiency conversion of heavy oil and preparation method thereofGAO XIONGHOU·Filed 2012·Granted May 15, 2018·0 cites·20 claims
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →