% Expired Patents = 20.0

Forward Citations = 19

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4 inventors (with patents filed for the assignee):

Clayton L Neuman (4 out of 9 patents)

Hyung Chul Wie (1 out of 1 patent)

Sang Ro Lee (1 out of 1 patent)

4. Se Gyeong Jang (1 out of 1 patent)

5 patents: Sort by Forward Citations

1. 10365039 - Multi-stage separation heat-exchange type drying system (2019-07-30),

2. 5062952 - Injection molding filter (1991-11-05),

3. 4299707 - Apparatus for filtering melted plastic (1981-11-10),

4. 4054273 - Dispersion apparatus for injection molding filter (1977-10-18),

5. 4021515 - Plastic injection mold with self-adjusting coring apparatus (1977-05-03),

Company Overview

A1engineering is a leading engineering and consulting firm specializing in providing innovative solutions for a wide range of industries. With a team of highly skilled engineers and technicians, we offer a comprehensive suite of services including design, analysis, and testing. Our commitment to quality and customer satisfaction sets us apart as a trusted partner for clients seeking reliable and efficient engineering solutions.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

5 Patents

#1 in Suncheon

#1,879 in South Korea

Suncheon, South Korea

A1engineering

Forward Citations = 19

4 inventors:

Clayton L Neuman (4 out of 9 patents)

Hyung Chul Wie (1 out of 1 patent)

Sang Ro Lee (1 out of 1 patent)

4. Se Gyeong Jang (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: A1engineering. Retrieved from https://idiyas.com/company/a1engineering

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]