Inventor

Huan CHANG

Inventor

Overview

5→

Patents

2021–2026

Patent span

Chemistry

Primary field (CPC C)

Patents· 5 as inventor

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

C08Gprimary

C08GMacromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds18%

A45DHairdressing or shaving equipment9%

A46BBrushes9%

C08LCompositions of macromolecular compounds9%

C21CProcessing of pig-iron, e.g. refining, manufacture of wrought-iron or steel9%

G06FElectric digital data processing9%

H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers9%

H04SStereophonic systems9%

Y02DClimate change mitigation technologies in information and communication technologies [ict], i.e. information and communication technologies aiming at the reduction of their own energy use9%

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

PatentTitleYear

12,534,573In situ polymerized flame retardant, preparation method thereof, and molding composition comprising thereof2026 12,375,868Control method and system using the same2025 12,240,947Flame-retardant semi-aromatic polyamide and preparation method thereof2025 12,234,521Method for controlling nitrogen in steelmaking by spraying hydrogen containing plasma2025 11,134,764Hot iron and curler with brush bristles2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021Patents assigned to FAROUK SYSTEMS INC (1)· patent assignee history

2021–2026Based in CN· patent location history

2025–2026Patents assigned to KINGFA SCIENCE & TECHNOLOGY CO (2)· patent assignee history

2025Patents assigned to HBZX HIGH TECH CO LTD (1)· patent assignee history

2025Patents assigned to SHENZHEN CYWEEMOTION TECH CO LTD (1)· patent assignee history

2025Patents assigned to UNIV BEIJING SCIENCE & TECHNOLOGY (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
KINGFA SCIENCE & TECHNOLOGY CO	2	2025–2026
FAROUK SYSTEMS INC	1	2021
HBZX HIGH TECH CO LTD	1	2025
SHENZHEN CYWEEMOTION TECH CO LTD	1	2025
UNIV BEIJING SCIENCE & TECHNOLOGY	1	2025

Locations

Location	Patents	Span
CN	5	2021–2026