Inventor
Yandong Yang
Inventor
Xiamen, CN
Overview
Patents· 5 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling29%
LOC1329%
G01NInvestigating or analysing materials by determining their chemical or physical properties14%
G06FElectric digital data processing14%
LOC2614%
PatentTitleYear
10,718,176Drilling speed improvement device capable of producing both hydraulic pulse and impact vibration202010,697,277Simulation device and method for integrated evaluation experiment for sand control wellbore plugging and plugging removal2020D0834514Portable solar charger2018D0827564Portable solar charger2018D0803456'Solar wall lamp'2017Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2017–2018Patents assigned to XIAMEN TOPUNIVE TECH CO LTD (3)· patent assignee history
2017–2018Based in Xiamen, CN· patent location history
2020Patents assigned to UNIV CHINA PETROLEUM EAST CHINA (2)· patent assignee history
2020Based in Shandong, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| XIAMEN TOPUNIVE TECH CO LTD | 3 | 2017–2018 |
| UNIV CHINA PETROLEUM EAST CHINA | 2 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Xiamen, CN | 3 | 2017–2018 |
| Shandong, CN | 2 | 2020 |