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Finnegan
Charles H. Suh
Partner
More
vCard
  • 22F West Tower
  • Mirae Asset Center 1
  • 26, Eulji-ro 5 gil, Jung-gu
  • Seoul, South Korea 04539
+82 2 6454 7301
charles.suh@finnegan.com charles.suh@finnegan.com

Charles H. Suh

Partner

  • +82 2 6454 7301 +82 2 6454 7301
  • charles.suh@finnegan.com charles.suh@finnegan.com
  • 22F West Tower
  • Mirae Asset Center 1
  • 26, Eulji-ro 5 gil, Jung-gu
  • Seoul, South Korea 04539
  • vCard

Charles Suh is the managing partner of Finnegan's Seoul office. He practices both utility and design patent litigation before U.S. district courts and the U.S. International Trade Commission (ITC). Charles has served as lead counsel and participates in every aspect of district court and ITC litigation, and in inter partes review (IPR) proceedings at the Patent Trial and Appeal Board (PTAB) of the U.S. Patent and Trademark Office (USPTO).

Charles's experience includes formulating litigation and pre-litigation strategy, oral arguments, taking witness testimony at trial, taking and defending depositions, briefing, and day-to-day case management. As a fluent Korean speaker, Charles focuses on IP matters involving Korean companies and is experienced in Korea-specific litigation tasks, including managing discovery of evidentiary material written in Korean and preparation of Korean-speaking witnesses for deposition and trial.

In addition, Charles has significant experience in patent portfolio management, preparing patentability, validity, and infringement opinions, and preparing and prosecuting patent applications directed to technical areas, including semiconductor fabrication/packaging, electronics, computer hardware/software, and military tactical systems. Charles was recognized as a Global Leader and a top IP strategist in Intellectual Asset Management's Strategy 300. Additionally, he has been recognized by Managing Intellectual Property as an "IP Star" in South Korea.

Charles frequently lectures in both English and Korean on a variety of patent litigation and prosecution topics before general and in-house audiences.

Charles served as an intelligence officer in the United States Army with the 10th Mountain Division and the 501st Military Intelligence Brigade, where he served as a host country advisor to the commander of U.S. military intelligence in Korea and a liaison officer to the Republic of Korea Army. Tours of duty included combat deployment to Haiti and Korea.

Experience

Nippon Steel & Sumitomo Metal Corp. v. POSCO

Represented POSCO, a Korean steel manufacturer, in a district court patent infringement, Lanham Act, and unfair competition action against a Japanese competitor in the area of grain oriented electrical steel.

2:12-cv-02429, D.N.J., Judges Cavanaugh, Chesler, Falk, Waldor
15-0112, Fed. Cir., Judges Dyk, Hughes, Newman

Celgard, LLC v. SK Innovation Co.

Represented Korea-based client SK Innovation (SKI) in a patent infringement suit against plaintiff Celgard LLC. The court granted SKI’s motion to dismiss for lack of personal jurisdiction and denied Celgard’s motion for preliminary injunction. Affirmed on appeal by Federal Circuit.

3:13-cv-00254, W.D.N.C., Judges Cayer, Cogburn
14-1807, Fed. Cir., Judges Newman, Reyna, Wallach

Certain Polyimide Film Products (Kaneka Corp. v. SKC Kolon PI, Inc.)

Represented a Korean polyimide film manufacturer in a patent infringement and unfair competition action in a district court and at the ITC.

337-TA-772, ITC, Judge Rogers
2:11-cv-03397, N.D. Cal., Judges Bernal, Fitzgerald, Nguyen, Zarefsky
18-1313, Fed. Cir.

LG Electronics USA Inc. v. Whirlpool Corp.

Defended LG Electronics against Whirlpool in retrial before jury on validity of patent on refrigerator technology and damages; settled favorably before verdict.

1:08-cv-00234, D. Del., Judge Sleet

Certain Refrigerators

Represented LG Electronics against charges of patent infringement on its refrigerators; the administrative law judge and the Commission entered a determination in LG’s favor; no appeal was filed.

337-TA-632, ITC, Judge Essex

Insights

Event

2024 Seoul Seminar: Patent Litigation in the Eastern District of Texas (EDTX)

2024 Seoul Seminar: Patent Litigation in the Eastern District of Texas (EDTX) 2024 Seoul Seminar: Patent Litigation in the Eastern District of Texas (EDTX)

April 4, 2024

Seoul

Conference

IPBC Korea 2024 IPBC Korea 2024

February 22, 2024

Seoul

Conference

IPBC Asia 2023 IPBC Asia 2023

November 28-30, 2023

Tokyo

Conference

IPBC Korea 2023 IPBC Korea 2023

April 20, 2023

Seoul

Conference

IPBC Asia 2022 IPBC Asia 2022

October 31 - November 2, 2022

Tokyo

Event

Finnegan Seoul Seminar: Mock Litigation and Trial

Finnegan Seoul Seminar: Mock Litigation and Trial

November 1, 2019

Seoul

More

Professional Recognition

"Over at Finnegan, Henderson, Farabow, Garrett & Dunner, managing partner of the Seoul office Charles Suh is a proactive force in patent litigation before the US district courts and International Trade Commission."

Intellectual Asset Management Patent 1000

“In Seoul, Charles Suh is the man in charge. A fluent Korean speaker, respected IP strategist and experienced U.S. district court and ITC litigator, he is someone in whom total trust can be placed.”

Intellectual Asset Management Patent 1000

“When he is not expertly representing South Korean interests in the U.S. courts in utility and design patent disputes, Charles Suh can be found lecturing on patent litigation and prosecution to packed in-house audiences in both English and Korean.”

Intellectual Asset Management Patent 1000

"Over at Finnegan, Henderson, Farabow, Garrett & Dunner, managing partner of the Seoul office Charles Suh is a proactive force in patent litigation before the US district courts and International Trade Commission."

Intellectual Asset Management Patent 1000

“In Seoul, Charles Suh is the man in charge. A fluent Korean speaker, respected IP strategist and experienced U.S. district court and ITC litigator, he is someone in whom total trust can be placed.”

Intellectual Asset Management Patent 1000

“When he is not expertly representing South Korean interests in the U.S. courts in utility and design patent disputes, Charles Suh can be found lecturing on patent litigation and prosecution to packed in-house audiences in both English and Korean.”

Intellectual Asset Management Patent 1000

News

Award/Ranking

Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked Finnegan Earns Top Rankings in 2026 IAM Patent 1000 Guide; Nearly 60 Attorneys Ranked

May 28, 2026

Intellectual Asset Management (IAM)

Award/Ranking

Finnegan Shortlisted for the 2025 Asian Legal Business Korea Law Awards Finnegan Shortlisted for the 2025 Asian Legal Business Korea Law Awards

October 20, 2025

Asian Legal Business

Award/Ranking

50 Finnegan Attorneys Ranked in the 2025 IAM Patent 1000

50 Finnegan Attorneys Ranked in the 2025 IAM Patent 1000

June 2, 2025

Intellectual Asset Management (IAM)

Award/Ranking

Finnegan Remains a Top Tier Firm in the 2025 Managing Intellectual Property IP Stars Rankings

Finnegan Remains a Top Tier Firm in the 2025 Managing Intellectual Property IP Stars Rankings

May 30, 2025

Managing Intellectual Property

Award/Ranking

Eleven Finnegan Attorneys Named to the 2025 IAM Strategy 300 Global Leaders List Eleven Finnegan Attorneys Named to the 2025 IAM Strategy 300 Global Leaders List

November 20, 2024

Intellectual Asset Management (IAM)

Award/Ranking

Finnegan Named International Intellectual Property Law Firm of the Year by Asian Legal Business Finnegan Named International Intellectual Property Law Firm of the Year by Asian Legal Business

November 7, 2024

Asian Legal Business
More

Professional Activities

  • American Intellectual Property Law Association
  • Virginia Trial Lawyers Association
Admissions and Education

Admissions

  • U.S. Patent and Trademark Office
  • Texas
  • Virginia
  • U.S. Court of Appeals, Federal Circuit

Education

University of Washington School of Law
J.D., 2001
United States Military Academy, West Point
B.S.M.E., Mechanical Engineering, 1993

Languages

  • Korean

Charles's Practices

Global IP Enforcement, Litigation, and Trials
ITC Section 337 Investigations and Trials
Patent Litigation and Trials
Patent Office Invalidation Proceedings
PTAB Invalidation Proceedings: IPR and PGR

Charles's Industries

AI, Electronics, and Information Technology
Electrical and Computer Technology
Electronic Devices and Components
Chemicals, Industrials, and Materials
Manufacturing
Consumer Goods and Services
Consumer Products
Life Sciences
Medical Device and Diagnostics
Transportation and Logistics
Automotive and Smart Mobility Tech

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