Inventor

Guanjun QIAO

Inventor

Overview

3→

Patents

2023–2025

Patent span

Chemistry

Primary field (CPC C)

Patents· 3 as inventor

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

C04Bprimary

C04BLime, magnesia18%

C01BNon-metallic elements9%

C01GCompounds containing metals not covered by subclasses c01d or c01f9%

C01PIndexing scheme relating to structural and physical aspects of solid inorganic compounds9%

C23CCoating metallic material9%

G01LMeasuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure9%

H01LSemiconductor devices9%

H10FInorganic semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation9%

H10NElectric solid-state devices not otherwise provided for9%

Y02PClimate change mitigation technologies in the production or processing of goods9%

PatentTitleYear

12,339,192Pressure sensor ceramic material and preparation method thereof2025 11,895,923Lead-free piezoelectric ceramic sensor material and a preparation method thereof2024 11,781,222Layered polycrystalline lead selenide photoelectric film and fabrication method thereof2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to UNIV JIANGSU (1)· patent assignee history

2023–2025Based in CN· patent location history

2024–2025Patents assigned to HUNAN MEICHENG CERAMIC TECH CO LTD (2)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
HUNAN MEICHENG CERAMIC TECH CO LTD	2	2024–2025
UNIV JIANGSU	1	2023

Locations

Location	Patents	Span
CN	3	2023–2025