Inventor

Yan Zhuang

Inventor

Nanjing, CN

Overview

2014–2021

Patent span

Chemistry

Primary field (CPC C)

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes13%

A61QSpecific use of cosmetics or similar toiletry preparations13%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds13%

C03CChemical composition of glasses, glazes or vitreous enamels13%

C04BLime, magnesia13%

C09CTreatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties13%

C09DCoating compositions, e.g. paints, varnishes or lacquers13%

H04LTransmission of digital information, e.g. telegraphic communication13%

PatentTitleYear

Assembled from patent assignee/location history and declaration credentials.

2014Patents assigned to LIU WEIZHONG (1)· patent assignee history

2014Patents assigned to SHANTOU LONGHUA PEARL LUSTRE PIGMENTS CO LTD (1)· patent assignee history

2014Patents assigned to ZHUANG YULIN (1)· patent assignee history

2014Based in Shantou, CN· patent location history

2021Patents assigned to HUAWEI TECH CO LTD (1)· patent assignee history

2021Based in Nanjing, CN· patent location history

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HUAWEI TECH CO LTD	1	2021
LIU WEIZHONG	1	2014
SHANTOU LONGHUA PEARL LUSTRE PIGMENTS CO LTD	1	2014
ZHUANG YULINself	1	2014

Locations

Location	Patents	Span
Nanjing, CN	1	2021
Shantou, CN	1	2014