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Patent applications and USPTO patent grants for HAN; Chengwei.The latest application filed is for "pre-sintered porcelain block for dental restoration, preparation method therefor and application thereof".
Patent | Date |
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Pre-sintered Porcelain Block For Dental Restoration, Preparation Method Therefor And Application Thereof App 20220192804 - HE; Lingling ;   et al. | 2022-06-23 |
Pre-sintered Ceramic Block For Dental Restoration, Preparation Method Therefor And Use Thereof App 20220177358 - HE; Lingling ;   et al. | 2022-06-09 |
Sintering furnance Grant 10,995,992 - He , et al. May 4, 2 | 2021-05-04 |
Rapid Sintering System And Rapid Sintering Method App 20200055782 - HE; Lingling ;   et al. | 2020-02-20 |
Sintering Furnance App 20190219336 - HE; Lingling ;   et al. | 2019-07-18 |
Electric wheel test bed Grant 10,180,377 - He , et al. Ja | 2019-01-15 |
Electric Wheel Test Bed App 20170059451 - HE; PING ;   et al. | 2017-03-02 |
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