Inventor
ZHIQIANG SUN
Inventor
CN
Overview
Patents· 3 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
E21Bprimary
E21BEarth or rock drilling20%
H02HEmergency protective circuit arrangements20%
H02MApparatus for conversion between ac and ac, between ac and dc, or between dc and dc, and for use with mains or similar power supply systems20%
H03FAmplifiers20%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers20%
PatentTitleYear
12,221,843Automatic detection function-integrated detection apparatus and method for water flowing fractured zone202511,962,275Amplification systems and methods with distortion reductions202411,264,888System and method providing over current protection based on duty cycle information for power converter2022Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2022–2024Patents assigned to ON BRIGHT ELECTRONICS SHANGHAI CO LTD (2)· patent assignee history
2022–2025Based in CN· patent location history
2025Patents assigned to UNIV SICHUAN (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| ON BRIGHT ELECTRONICS SHANGHAI CO LTD | 2 | 2022–2024 |
| UNIV SICHUAN | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 3 | 2022–2025 |