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Inventor

Yangguang ZHAO

Inventor
CN

Overview

3→
Patents
2021–2025
Patent span
Mechanical engineering
Primary field (CPC F)

Patents· 3 as inventor

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

F16Cprimary
F16CShafts29%
A61KPreparations for medical, dental or toiletry purposes14%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations14%
C07BGeneral methods of organic chemistry14%
C07DHeterocyclic compounds14%
F16JPistons14%
PatentTitleYear
12,416,332Bearing seal and its applications202512,276,305Bearing seal and its applications202511,198,686Crystal form and salt form of pyridone compound and preparation method therefor2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to GUANGZHOU JOYO PHARMATECH CO LTD (1)· patent assignee history
2021Patents assigned to MEDSHINE DISCOVERY INC (1)· patent assignee history
2021Patents assigned to SHIJIAZHUANG SAGACITY NEW DRUG DEV CO LTD (1)· patent assignee history
2021Patents assigned to SHLIAZHUANG SAGACITY NEW DRUG DEV CO LTD (1)· patent assignee history
2021–2025Based in CN· patent location history
2025Patents assigned to SKF AB (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
SKF AB22025
GUANGZHOU JOYO PHARMATECH CO LTD12021
MEDSHINE DISCOVERY INC12021
SHIJIAZHUANG SAGACITY NEW DRUG DEV CO LTD12021
SHLIAZHUANG SAGACITY NEW DRUG DEV CO LTD12021
Locations
LocationPatentsSpan
CN32021–2025