Inventor
Ping-Cheng Yu
Inventor
New Taipei, TW
Overview
Patents· 8 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F16Kprimary
F16KValves32%
G05DSystems for controlling or regulating non-electric variables27%
F15BSystems acting by means of fluids in general14%
Y10TTechnical subjects covered by former us classification14%
E21BEarth or rock drilling5%
F02MSupplying combustion engines in general with combustible mixtures or constituents thereof5%
F04FPumping of fluid by direct contact of another fluid or by using inertia of fluid to be pumped5%
PatentTitleYear
10,865,909Vacuum-keeping multistage vacuum-generating and vacuum-destructing valve202010,808,496Cementing plug202010,794,497Vacuum-based energy-saving large-capacity precision pressure regulation valve202010,732,650Vacuum large-capacity electrically controlled proportional valve202010,704,701Vacuum electrically controlled proportional valve202010,670,163Electrically-controlled large-capacity proportional valve202010,578,065Two-stage intake and two-stage discharge structure of electrically controlled proportional valve202010,352,464Structure of energy-saving precision pressure adjusting valve2019Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2019–2020Patents assigned to TAIWAN CHELIC CO LTD (7)· patent assignee history
2019–2020Based in New Taipei, TW· patent location history
2020Patents assigned to BEIJING PETROLEUM MACHINERY CO (1)· patent assignee history
2020Patents assigned to CHINA NAT PETROLEUM CORP (1)· patent assignee history
2020Patents assigned to CNPC ENG TECH RES & DEV CO LTD (1)· patent assignee history
2020Based in Beijing, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TAIWAN CHELIC CO LTD | 7 | 2019–2020 |
| BEIJING PETROLEUM MACHINERY CO | 1 | 2020 |
| CHINA NAT PETROLEUM CORP | 1 | 2020 |
| CNPC ENG TECH RES & DEV CO LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| New Taipei, TW | 7 | 2019–2020 |
| Beijing, CN | 1 | 2020 |