Inventor
Baoguo Jian
Inventor
CN
Overview
Patents· 6 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
F04Bprimary
F04BPositive-displacement machines for liquids42%
F16KValves25%
B23PMetal-working not otherwise provided for8%
B25BTools or bench devices not otherwise provided for, for fastening, connecting, disengaging, or holding8%
E21BEarth or rock drilling8%
F16JPistons8%
PatentTitleYear
12,297,824Plunger pump with fault diagnosis structure202512,152,575Hydraulic end assembly structure of a plunger pump202412,085,073Valve spring fixing device and plunger pump202411,964,350Puller, claw, and usage method of puller202411,698,063Hydraulic end assembly structure of a plunger pump202311,519,405Valve spring seat sleeve, valve assembly and plunger pump2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2025Patents assigned to YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD (4)· patent assignee history
2022–2025Based in CN· patent location history
2023–2024Patents assigned to AMERICAN JEREH INT CORPORATION (2)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| YANTAI JEREH PETROLEUM EQUIPMENT & TECHNOLOGIES CO LTD | 4 | 2022–2025 |
| AMERICAN JEREH INT CORPORATION | 2 | 2023–2024 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 6 | 2022–2025 |