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Patent applications and USPTO patent grants for Duan; Hongjun.The latest application filed is for "tire pressure monitoring sensor".
Patent | Date |
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Tire pressure monitoring sensor suitable for use in an environment with liquids and/or impurities Grant 9,987,888 - Li , et al. June 5, 2 | 2018-06-05 |
Tire Pressure Monitoring Sensor App 20170158001 - Li; Wei ;   et al. | 2017-06-08 |
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