Sangjoon Eum has been granted 7 US patents while listed as an inventor at LG . The first was granted in 2020 and the most recent in July 2025. Sangjoon Eum ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Sangjoon Eum in Seoul, KR.
Patents per Year Patents granted per year, 2020 to 2025 Bar chart with a peak of 3 patents in 2023. peak 3 2020: 1 patents 2020 2022: 1 patents 2022 2023: 3 patents 2023 2024: 1 patents 2024 2025: 1 patents 2025
Issued Patents All Time
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Showing 1–7 of 7 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
12362613 Motor having a first rotor core containing magnets and a second rotor core made of magnetic material Chisung Park , Gyujong JEONG 2025-07-15
12046953 Dual rotor-type motor having improved stator structure, and compressor comprising same Dongseok Ryu , Kiman Kim 2024-07-23
$12,000
11824408 Dual rotor-type motor for reducing torque ripple and compressor comprising same Dongseok Ryu , Kiman Kim 2023-11-21
$17,000
11777347 Motor having a first rotor core containing magnets and a second rotor core made of magnetic material Chisung Park , Gyujong JEONG 2023-10-03
$11,000
11604014 Electric motor and compressor having the same Injae Lee , Jeonghwan Kim , Mingyu Kim , Heedon Jung 2023-03-14
$17,000
11532967 Electric motor having permanent magnet and compressor including an electric motor Kiman Kim , Dongseok Ryu 2022-12-20
$17,000
10840757 Electric motor with permanent magnet and compressor having the same Dongseok Ryu , Kiman Kim 2020-11-17
$19,000
