loadpatents
Patent applications and USPTO patent grants for YANG; YONGTAO.The latest application filed is for "device for installing retaining ring on shaft".
Patent | Date |
---|---|
Device For Installing Retaining Ring On Shaft App 20220168857 - YANG; YONGTAO ;   et al. | 2022-06-02 |
Recyclable sand-consolidated anchor head prestressed anchor, anchorage jack and its application method Grant 10,794,184 - Sun , et al. October 6, 2 | 2020-10-06 |
Recyclable Sand-consolidated Anchor Head Prestressed Anchor, Anchorage Jack And Its Application Method App 20200102826 - SUN; Guanhua ;   et al. | 2020-04-02 |
Landing-door door lock device Grant 10,189,680 - Yang , et al. Ja | 2019-01-29 |
Root key type pressure bearing mechanism in anchor hole, root key type anchor cable and anchor hole grouting method Grant 9,783,948 - Sun , et al. October 10, 2 | 2017-10-10 |
Landing-door Door Lock Device App 20170267495 - Yang; Yongtao ;   et al. | 2017-09-21 |
Root Key Type Pressure Bearing Mechanism In Anchor Hole, Root Key Type Anchor Cable And Anchor Hole Grouting Method App 20170175354 - SUN; Guanhua ;   et al. | 2017-06-22 |
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