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Inventor

JIYUN LIU

Inventor
CN

Overview

4→
Patents
2023–2025
Patent span
Human necessities
Primary field (CPC A)

Patents· 4 as inventor

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

A23Bprimary
A23BPreservation of foods, foodstuffs or non-alcoholic beverages13%
A23LFoods, foodstuffs or non-alcoholic beverages, not otherwise provided for13%
A61KPreparations for medical, dental or toiletry purposes13%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations13%
A61QSpecific use of cosmetics or similar toiletry preparations13%
C07CAcyclic or carbocyclic compounds13%
C07DHeterocyclic compounds13%
LOC1413%
PatentTitleYear
D1087053Record player2025D1062684Record player202512,227,472Series of skin-whitening (lightening) compounds202511,739,040Series of skin-whitening (lightening) compounds2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023–2025Patents assigned to UNIGEN INC (2)· patent assignee history
2023–2025Based in US· patent location history
2025Patents assigned to LIU JIYUN (2)· patent assignee history
2025Based in CN· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
LIU JIYUNself22025
UNIGEN INC22023–2025
Locations
LocationPatentsSpan
CN22025
US22023–2025