Inventor

KEFU CHEN

Inventor

Overview

2→

Patents

2024–2025

Patent span

Performing operations

Primary field (CPC B)

Patents· 2 as inventor

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

B25Jprimary

B25JManipulators8%

B29CShaping or joining of plastics8%

B33YAdditive manufacturing, i.e. manufacturing of three-dimensional [3d] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3d printing, stereolithography or selective laser sintering8%

B82YSpecific uses or applications of nanostructures8%

C08JWorking-up8%

C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients8%

C08LCompositions of macromolecular compounds8%

D21HPulp compositions8%

E01DConstruction of bridges, elevated roadways or viaducts8%

E02BHydraulic engineering8%

PatentTitleYear

12,305,011Wavelength-controllable cellulose iridescent film and method for preparation thereof2025 12,115,731Primary-secondary type disease detection and repair system and method for infrastructure2024

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2024Patents assigned to UNIV SHANDONG (1)· patent assignee history

2024–2025Based in CN· patent location history

2025Patents assigned to UNIV SOUTH CHINA TECH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
UNIV SHANDONG	1	2024
UNIV SOUTH CHINA TECH	1	2025

Locations

Location	Patents	Span
CN	2	2024–2025