Chemicals, Materials, Metallurgy, Biotechnology,
Pharmaceuticals, Medical Devices, Healthcare & Life Sciences

Hyejin Lee

Partner, Patent Attorney

  • Introduction

    Hyejin Lee is a partner patent attorney in charge of AJU Kim Chang Lee’s Chemicals/Materials/Bio & Pharmaceuticals team and holds 20 years of experience in patent drafting, patent prosecution, patent litigation, patent licensing, and client counseling.

    Hyejin's technical experience includes, polymer materials, electronic materials, display materials, metals, nano particles, environmental science, and pharmaceutical technology.
  • Technical fields

    - Semiconductor and display
    o Adhesive
    o Composite sheet
    o Touch panel,
    o Flexible display
    o Polarizer
    o Film foming
    o ACF:Anisotropic Conductive Film
    o Semiconductor epoxy molding
    o CMP catalyst
    o Conductive gasket
    o Etching agent
    o Quantum dot

    - Material
    o Barrier film
    o Graphite sheet
    o Fiber enhanced material / forming
    o TPE
    o Synthesized marble
    o Steel panel, bumper beam, INVAR alloy
    o Medical material
    o Pultrusion
    o Fiber / textile
    o PC
    o ABS, ASA
    o Polyolefin, Graphene
    o EPS, CNT
    o FPCB
    o Stampable sheet
    o High-pressure container

    - Environment
    o Filtering
    o Membrane
    o Wastewater treatment

    - Energy
    o Solar cell
    o Secondary battery (Positive/negative active material, separator, electrolyte)
    o Fuel cell
    o Biomass fuel

    - Pharmaceutical, cosmetics, enzymes
    - Surface treatment (coating, plating, adhesive)
    - Lubricant
    - Fertilizer
    - Food, animal feed
  • Areas of Practice

    - Filing application and prosecution of patent (inbound/outbound)
    - Patent and trademark trial and litigation
    - Infringement analysis / product clearance
    - Patent portfolio counseling
    - Technical consulting
  • Major Cases

    - Invalidation analysis and trial regarding Biodegradable Resin Composition
    - Invalidation Trial regarding OLED patent representing SAMSUNG SDI
    - Invalidation and Infringement analysis and counseling regarding patent related to Olefin Catalyst
    - Invalidation analysis and counseling regarding Poly(organosiloxane) Composition
    - Infringement analysis and counseling regarding Resin Composition for encapsulating LED
    - Patent trial and litigation reagarding Ion-conductive Composition for Protecting Reactive Metal Anode
    - Invalidation Trial regarding Meat Surface Washing
    - Invalidation Trial and Litigation regarding Plating
    - Infringement analysis, counseling and trial regarding Meta-aramid
    - Infringement analysis and counseling regarding Hydro refined Biodiesel
    - Infringement analysis and counseling regarding Conductive Gasket
    - Infringement analysis and counseling representing Kraft
    - Invalidation Search related to EPS
    - Patent Search on Touch Panel
    - Infringement Search on Water Treatment
  • Education & Career

    - Hongik University
    (B.Sc. in Chemical Engineering)
    - DK CHOI & PARTNERS Patent Office
    - AJU Kim Chang Lee
    - Member of KPAA
    (Korean Patent Attorneys Association)
    - Member of APAA
    (Asian Patent Attorneys Association)
  • Contact