Inventor

XUEJUN LIU

Inventor

Overview

7→

Patents

2023–2025

Patent span

Chemistry

Primary field (CPC C)

Patents· 7 as inventor

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

A61Kprimary

A61KPreparations for medical, dental or toiletry purposes11%

A61PSpecific therapeutic activity of chemical compounds or medicinal preparations11%

C07BGeneral methods of organic chemistry11%

B32BLayered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form6%

C07CAcyclic or carbocyclic compounds6%

C07DHeterocyclic compounds6%

C07KPeptides6%

C08LCompositions of macromolecular compounds6%

D06NWall, floor, or like covering materials, e.g. linoleum, oilcloth, artificial leather, roofing felt, consisting of a fibrous web coated with a layer of macromolecular material6%

F01DNon-positive displacement machines or engines, e.g. steam turbines6%

PatentTitleYear

12,502,872Synthetic leather2025 D1058854Shutter assembly2025 D1058855Shutter assembly2025 12,129,227Methods, processes, and compositions for improved preparation of HU308 and HU4332024 11,892,083Piston seal ring2024 11,661,420Compound containing fused ring, use thereof and pharmaceutical composition containing same2023 11,548,941Safe and effective method of treating psoriasis with anti-IL-23 specific antibody2023

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2023Patents assigned to JANSSEN BIOTECH INC (1)· patent assignee history

2023Patents assigned to NANJING HEPO PHARMACEUTICAL CO LTD (1)· patent assignee history

2023–2025Based in CN· patent location history

2023–2024Based in US· patent location history

2024Patents assigned to RAYTHEON TECH CORP (1)· patent assignee history

2024Based in CA· patent location history

2025Patents assigned to LIU XUEJUN (2)· patent assignee history

2025Patents assigned to DOW GLOBAL TECHNOLOGIES LLC (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LIU XUEJUNself	2	2025
DOW GLOBAL TECHNOLOGIES LLC	1	2025
JANSSEN BIOTECH INC	1	2023
NANJING HEPO PHARMACEUTICAL CO LTD	1	2023
RAYTHEON TECH CORP	1	2024

Locations

Location	Patents	Span
CN	4	2023–2025
US	2	2023–2024
CA	1	2024