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Patent applications and USPTO patent grants for XU; Haidi.The latest application filed is for "low-temperature nox storage catalyst used for automobile exhaust purification and preparation method thereof".
Patent | Date |
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LOW-TEMPERATURE NOx STORAGE CATALYST USED FOR AUTOMOBILE EXHAUST PURIFICATION AND PREPARATION METHOD THEREOF App 20220241726 - WANG; Yun ;   et al. | 2022-08-04 |
AFI-CHA hybrid crystal zeolite and NH3-SCR catalyst using same as carrier, and preparation methods thereof Grant 11,241,675 - Xu , et al. February 8, 2 | 2022-02-08 |
Afi-cha Hybrid Crystal Zeolite And Nh3-scr Catalyst Using Same As Carrier, And Preparation Methods Thereof App 20210308655 - XU; Haidi ;   et al. | 2021-10-07 |
Apparatus for obtaining frequency difference and amplitude spectrum graph, fault location system, and antenna system Grant 10,470,065 - Huang , et al. No | 2019-11-05 |
Apparatus For Obtaining Frequency Difference And Amplitude Spectrum Graph, Fault Location System, And Antenna System App 20180288639 - HUANG; Weiheng ;   et al. | 2018-10-04 |
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