Inventor
WENQUAN LI
Inventor
CN
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G01Vprimary
G01VGeophysics25%
B25HWorkshop equipment, e.g. for marking-out work13%
C02FTreatment of water, waste water, sewage, or sludge13%
E05BLocks13%
E05CBolts or fastening devices for wings, specially for doors or windows13%
E21BEarth or rock drilling13%
Y02WClimate change mitigation technologies related to wastewater treatment or waste management13%
PatentTitleYear
12,540,089System and method for controling amount of liquid carbon source released to constructed wetland202611,788,329Latch structure202311,585,209Magnetic sensor rotation and orientation about drill202311,467,316Technologies for in-situ calibration of magnetic field measurements2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2023Patents assigned to HALLIBURTON ENERGY SERVICES INC (2)· patent assignee history
2022Patents assigned to HALLIBURTON ENERGY SERV INC (1)· patent assignee history
2022–2023Based in US· patent location history
2023Patents assigned to NINGBO E POWER ENGINE TECH CO LTD (1)· patent assignee history
2023–2026Based in CN· patent location history
2026Patents assigned to OCEAN UNIV CHINA (1)· patent assignee history
2026Patents assigned to SHANDONG ACADEMY OF ENV SCIENCES AND ENV ENGINEERING CO LTD (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| HALLIBURTON ENERGY SERVICES INC | 2 | 2022–2023 |
| HALLIBURTON ENERGY SERV INC | 1 | 2022 |
| NINGBO E POWER ENGINE TECH CO LTD | 1 | 2023 |
| OCEAN UNIV CHINA | 1 | 2026 |
| SHANDONG ACADEMY OF ENV SCIENCES AND ENV ENGINEERING CO LTD | 1 | 2026 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 2 | 2023–2026 |
| US | 2 | 2022–2023 |