Inventor

Jianfeng Yao

Inventor

Overview

7→

Patents

2022–2026

Patent span

Physics

Primary field (CPC G)

Patents· 7 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 therein27%

E21BEarth or rock drilling13%

B60RVehicles, vehicle fittings, or vehicle parts, not otherwise provided for7%

F21VFunctional features or details of lighting devices or systems thereof7%

F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to the form or the kind of the light sources or of the colour of the light emitted7%

G02BOptical elements, systems or apparatus7%

G05DSystems for controlling or regulating non-electric variables7%

G09FDisplaying7%

G09GArrangements or circuits for control of indicating devices using static means to present variable information7%

H01LSemiconductor devices7%

PatentTitleYear

12,571,287Wellhead automatic positioning method and system of plugging and perforating operation machine2026 12,503,919Integrated plugging and perforating operation system2025 11,796,155Backlight assembly and display device2023 11,762,235Backlight module and display device2023 11,635,656Backlight module and display apparatus2023 11,620,932Displaying device and driving method thereof2023 11,260,815Protection of a vehicle occupant2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to VOLVO CAR CORP (1)· patent assignee history

2022Based in SE· patent location history

2023Patents assigned to BEIJING BOE OPTOELECTRONICS TECH CO LTD (4)· patent assignee history

2023Patents assigned to BOE TECHNOLOGY GROUP CO LTD (4)· patent assignee history

2023–2026Based in CN· patent location history

2025–2026Patents assigned to BAOJI SAFE PETROLEUM MACHINERY CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
BEIJING BOE OPTOELECTRONICS TECH CO LTD	4	2023
BOE TECHNOLOGY GROUP CO LTD	4	2023
BAOJI SAFE PETROLEUM MACHINERY CO LTD	2	2025–2026
VOLVO CAR CORP	1	2022

Locations

Location	Patents	Span
CN	6	2023–2026
SE	1	2022