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Patent applications and USPTO patent grants for Zhang; Tianrong.The latest application filed is for "garden tool and toppling protection method thereof".
Patent | Date |
---|---|
Handle assembly for garden tool and garden tool having same Grant 11,399,461 - Bian , et al. August 2, 2 | 2022-08-02 |
Garden Tool and Toppling Protection Method Thereof App 20210127568 - Wei; Juan ;   et al. | 2021-05-06 |
Handle Assembly and Gardening Tool Having Same App 20200337230 - Bian; Xiaoxian ;   et al. | 2020-10-29 |
Push Rod Mechanism for Garden Tool and Garden Tool with Said Mechanism App 20200000030 - Wei; Juan ;   et al. | 2020-01-02 |
Technological method for synthesis of optically pure L-/D-lactide catalyzed by biogenic guanidine Grant 9,630,942 - Li , et al. April 25, 2 | 2017-04-25 |
Method for synthesizing poly(butylene succinate-co-butylene adipate) Grant 9,469,724 - Li , et al. October 18, 2 | 2016-10-18 |
Method For Synthesizing Poly(butylene Succinate-co-butylene Adipate) App 20160096917 - LI; Hong ;   et al. | 2016-04-07 |
Technological Method For Synthesis Of Optically Pure L-/d-lactide Catalyzed By Biogenic Guanidine App 20160039782 - Li; Hong ;   et al. | 2016-02-11 |
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