Inventor · disambiguated record
Chenggang He
Also filed as: HE CHENGGANG
2 granted patents·0 citations·filing 2022–2022
20Inventor score
Technology areasC07C
Top patents by PatentIndex Score
2 records- 0154US12121835B2Method for refining styrene by using combined falling film reboilers and heat pump technology to provide heat source of separation columnCHANGZHOU RUIHUA CHEMICAL ENGINEERING TECH CO LTD·Filed 2022·Granted Oct 22, 2024·0 cites·9 claims
- 0245US12312321B2Method for direct hydrogenation of maleic anhydride to produce 1,4-butanediol and co-produce succinic anhydrideCHANGZHOU RUIHUA CHEMICAL ENGINEERING TECH CO LTD·Filed 2022·Granted May 27, 2025·0 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →