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Inventor

Xiangwei ZHENG

Inventor
CN

Overview

2→
Patents
2022
Patent span
Human necessities
Primary field (CPC A)

Patents· 2 as inventor

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

A61Kprimary
A61KPreparations for medical, dental or toiletry purposes17%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations17%
A63FCard, board, or roulette games17%
C07HSugars17%
G06FElectric digital data processing17%
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers17%
PatentTitleYear
11,440,930Preparation method of high-purity total ginkgo flavonol glycoside and application of same202211,350,215Audio play and acquisition method and apparatus, device, and readable storage medium2022

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2022Patents assigned to SPH XING LING SCI & TECH PHARMACEUTICAL CO LTD (1)· patent assignee history
2022Patents assigned to TENCENT TECH SHENZHEN CO LTD (1)· patent assignee history
2022Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SPH XING LING SCI & TECH PHARMACEUTICAL CO LTD12022
TENCENT TECH SHENZHEN CO LTD12022
Locations
LocationPatentsSpan
CN22022