Inventor
CHEN ZHIRONG
CN31 patents
⚠️ This page may combine multiple inventors who share the name “CHEN ZHIRONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZHEJIANG NHU CO LTD
13 patentsUS10737250B2Aug 11, 2020
PdIn alloy catalyst, method for manufacturing PdIn alloy catalyst and application thereof
ZHEJIANG NHU CO LTD3 citations71
US11440996B2Sep 13, 2022
Preparation method of polyphenylene sulfide resin, and polyphenylene sulfide resin prepared thereby
ZHEJIANG NHU CO LTD2 citations67
US12391969B2Aug 19, 2025
Additive used in methionine preparation process, and methionine preparation method
ZHEJIANG NHU CO LTD0 citations59
US11180440B2Nov 23, 2021
Method for preparing isophorone diamine by means of hydrogenation reduction of isophorone nitrile imine
ZHEJIANG NHU CO LTD0 citations53
US12435033B2Oct 7, 2025
Method and device for preparing adiponitrile
ZHEJIANG NHU CO LTD0 citations47
US12331007B2Jun 17, 2025
Use of a multidentate phosphite ligand in the catalytic synthesis of adiponitrile
ZHEJIANG NHU CO LTD0 citations46
US11632970B2Apr 25, 2023
Vitamin and carotenoid powder and its preparation method and application
ZHEJIANG NHU CO LTD0 citations46
US12275692B2Apr 15, 2025
Method for preparing sodium taurate as taurine intermediate, and method for preparing taurine
ZHEJIANG NHU CO LTD0 citations45
US11130732B2Sep 28, 2021
Method and device for preparing 2-hydroxy-4-methylthiobutyric acid and intermediates thereof
ZHEJIANG NHU CO LTD0 citations45
US11220478B2Jan 11, 2022
Preparation method for 4-phenylthio-benzenethiol
ZHEJIANG NHU CO LTD0 citations41
US10668460B2Jun 2, 2020
Composite catalyst, method for manufacturing composite catalyst and application thereof
ZHEJIANG NHU CO LTD0 citations37
US10065901B2Sep 4, 2018
Method for preparing optically active carbonyl compound
ZHEJIANG NHU CO LTD0 citations33
US9206120B2Dec 8, 2015
Clean method for preparing D,L-methionine
ZHEJIANG NHU CO LTD0 citations28
ZHEJIANG NHU SPECIAL MAT CO LTD
3 patentsUS10844171B2Nov 24, 2020
Production method of semi-aromatic polyamide, and semi-aromatic polyamide
ZHEJIANG NHU SPECIAL MAT CO LTD1 citations53
US12168717B2Dec 17, 2024
Semi-aromatic polyamide resin and preparation method therefor
ZHEJIANG NHU SPECIAL MAT CO LTD0 citations41
US9567440B2Feb 14, 2017
Fiber grade polyphenylene sulfide resin synthesis method
ZHEJIANG NHU SPECIAL MAT CO LTD0 citations31