April Sunyoung Park assists clients with all aspects of patent infringement matters before the U.S. District Courts and the U.S. International Trade Commission. A skilled patent litigator with a global client base, April has established a reputation as an international authority in her field, with experience spanning many phases of the litigation process and touching on a wide array of technologies.
April’s clients rely on her substantial experience with and diligent efforts in various stages of patent litigation, including developing technical positions on infringement/noninfringement and validity/invalidity, drafting complaints, working with fact discovery and claim construction, prepping experts for trial and deposition, and managing post-trial issues. Throughout her career, she has also developed a keen understanding of a diverse range of technologies, including semiconductor devices, signal processing for television, smartphones, and smartwatches, graphic processing units, pharmaceuticals, solar cells, air-cooled condensers, and lithium-ion batteries.
Bilingual in English and Korean, April is adept at working collaboratively and communicating effectively across culture and language differences to represent and build relationships with her international clients, particularly those in Asia.
In her pro bono practice, April works with Capital Area Immigrants’ Rights to help individuals navigate the complexities of the immigration process.
April enjoys spending time outdoors, especially visiting beaches and parks with her husband and two children.
Recognitions & awards
Ones to Watch
Best Lawyers
2024-2025
Women Worth Watching in STEM
Profiles in Diversity Journal
2024
Fellow
Leadership Council on Legal Diversity
2024
Capital Pro Bono Honor Roll
District of Columbia Courts
2022-2023
Experience
Certain Adalimumab, Processes for Manufacturing or Relating to Same, and Products Containing Same (USITC 337-TA-1296) – Represented Respondents Alvotech and Ivers-Lee against complainant AbbVie in trade secret litigation.
DivX, LLC v. MediaTek Inc. et al. (E.D. Tex.) – Represented defendant MediaTek in a case involving breach of contract, trade secrets misappropriation, trademark infringement, and RICO claims.
Smart Mobile Technologies, LLC v. Samsung Electronics Co., Ltd. et al (W.D. Tex) – Representing defendant Samsung in patent litigation concerning wireless communication.
SPG Dry Cooling USA LLC v. Evapco Dry Cooling, Inc. (D.N.J.) – Representing defendant Evapco in patent litigation concerning air-cooled condensers.
Certain Lithium-Ion Battery Cells, Battery Modules, Battery Packs, Components Thereof, and Products Containing the Same (USITC 337-TA-1181) – Represented complainant LG Chem against SKI in patent litigation concerning batteries and separators.
Ericsson Inc. et al v. Samsung Electronics Co., Ltd. et al (E.D. Tex) – Represented defendant Samsung in patent litigation concerning wireless communication.
Clear Imaging Research, LLC v. Samsung Electronics Co., Ltd. et al (E.D. Tex) – Represented defendant Samsung in patent litigation concerning image processing.
Represented a Fortune 50 consumer electronics manufacturer in patent litigation against SEVEN Networks, LLC concerning mobile device resource management and syncing.
Certain Photovoltaic Cells and Products Containing Same (No. 337-TA-1151) – Represented respondent Jinko Solar against Hanwha Q Cells in patent litigation concerning solar cells.
Certain Solid State Storage Drives, Stacked Electronics Components, and Products Containing Same (USITC 337-TA-1097) – Represented respondents SK hynix, Dell, Acer, ASUS, HP, and Hewlett Packard Enterprise against BiTMICRO in patent litigation concerning SSDs and stacked modules.
SEVEN Networks, LLC v. Samsung Electronics Co., Ltd. et al (E.D. Tex) – Represented defendant Samsung in patent litigation concerning smartphone resource management.
Certain Batteries and Electrochemical Devices Containing Composite Separators, Components Thereof, and Products Containing
Same (USITC 337-TA-1087) – Represented complainant LG Chem against ATL in patent litigation concerning batteries and separators.
Certain Graphics Processors, DDR Memory Controllers, and Products Containing the Same (USITC 337-TA-1037) – Represented respondent LG against ZiiLabs in patent litigation concerning Graphics Processing Units and DDR Memory Controllers.
Personalized Media Communications, LLC v. Samsung Electronics America, Inc. and Samsung Electronics Co., Ltd.(E.D. Tex) – Represented defendant Samsung in patent litigation concerning digital signal processing for televisions and smartphones.
The Board of Trustees of The University of Illinois v. Micron Technology, Inc. (C.D.Ill) – Represented defendant Micron in patent litigation concerning deuterium annealed semiconductor devices.
Certain Automated Teller Machines, ATM Modules, Components Thereof, and Products Containing Same (USITC 337-TA-972) – Represented respondent Nautilus Hyosung against Diebold in patent litigation concerning a wide array of technology associated with ATMs.
Negotiated on behalf of SK hynix against Acacia Research Group regarding various semiconductor patents.
Children’s Law Center Pro Bono – Represented a client to secure an Individualized Educational Program for her eight-year old son who was diagnosed with Attention Deficit Hyperactivity Disorder (ADHD) and struggled with focus in class.
