Inventor

YIFENG ZHANG

Inventor
CN

Overview

17→
Patents
2021–2026
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 17 as inventor

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

E04Hprimary
E04HBuildings or like structures for particular purposes13%
LOC1413%
F21SNon-portable lighting devices10%
F21VFunctional features or details of lighting devices or systems thereof10%
H02JElectric power networks10%
LOC137%
A47CChairs3%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general3%
F21LLighting devices or systems thereof, being portable or specially adapted for transportation3%
G06NComputing arrangements based on specific computational models3%

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2025Patents assigned to POLYGROUP MACAU LTD BVI (5)· patent assignee history
2021–2026Based in CN· patent location history
2022–2026Patents assigned to POLYGROUP LTD MACAO COMMERCIAL OFFSHORE (3)· patent assignee history
2022–2024Patents assigned to ZHANG YIFENG (3)· patent assignee history
2022Patents assigned to ALIBABA GROUP HOLDING LTD (1)· patent assignee history
2023Patents assigned to XU HAIMEI (4)· patent assignee history
2023Based in GD· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
POLYGROUP MACAU LTD BVI52021–2025
XU HAIMEI42023
POLYGROUP LTD MACAO COMMERCIAL OFFSHORE32022–2026
ZHANG YIFENGself32022–2024
ALIBABA GROUP HOLDING LTD12022
Locations
LocationPatentsSpan
CN162021–2026
GD12023