LexDanaLexDanabeta
Inventor

Haohao LI

Inventor
CN

Overview

4→
Patents
2024–2025
Patent span
Physics
Primary field (CPC G)

Patents· 4 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G02Fprimary
G02FOptical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein38%
E21BEarth or rock drilling13%
G09GArrangements or circuits for control of indicating devices using static means to present variable information13%
H05KPrinted circuits13%
H10DInorganic electric semiconductor devices13%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution13%
PatentTitleYear
12,398,613Side door bolt-free ram blowout preventer202512,399,406Display panel, display device202512,313,941Liquid crystal light-control panel and display device202512,147,135Display substrate, display apparatus, and load compensation method applied to display substrate2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024–2025Patents assigned to BOE TECHNOLOGY GROUP CO LTD (3)· patent assignee history
2024–2025Patents assigned to CHENGDU BOE OPTOELECT TECH CO (3)· patent assignee history
2024Patents assigned to BEIJING BOE TECHNOLOGY DEV CO LTD (1)· patent assignee history
2024–2025Based in CN· patent location history
2025Patents assigned to RONGSHENG MACHINERY MFT LTD OF HUABEI OILFIELD HEBEI (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
BOE TECHNOLOGY GROUP CO LTD32024–2025
CHENGDU BOE OPTOELECT TECH CO32024–2025
BEIJING BOE TECHNOLOGY DEV CO LTD12024
RONGSHENG MACHINERY MFT LTD OF HUABEI OILFIELD HEBEI12025
Locations
LocationPatentsSpan
CN42024–2025