Inventor
SI QIAN
Inventor
CN
Overview
Patents· 4 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G06Kprimary
G06KGraphical data reading50%
H04NPictorial communication, e.g. television50%
PatentTitleYear
12,361,239Method, apparatus, and system for characterizing an optical system202512,073,282Method, apparatus, and system for characterizing an optical system202411,893,449Method, apparatus, and system for characterizing an optical system202411,210,483Method, apparatus, and system for characterizing an optical system2021Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2021–2024Patents assigned to DATAMAX ONEIL CORP (3)· patent assignee history
2021–2025Based in CN· patent location history
2025Patents assigned to HAND HELD PROD INC (1)· patent assignee history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| DATAMAX ONEIL CORP | 3 | 2021–2024 |
| HAND HELD PROD INC | 1 | 2025 |
Locations
| Location | Patents | Span |
|---|---|---|
| CN | 4 | 2021–2025 |