Inventor

SANGCHUL LEE

Inventor

KR

Overview

2021–2026

Patent span

Human necessities

Primary field (CPC A)

Patents· 29 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

A47Lprimary

A47LDomestic washing or cleaning27%

LOC1410%

B23KSoldering or unsoldering6%

C22CAlloys6%

G06FElectric digital data processing6%

B04CApparatus using free vortex flow, e.g. cyclones4%

B08BCleaning in general4%

H04MTelephonic communication4%

A46BBrushes2%

A61KPreparations for medical, dental or toiletry purposes2%

PatentTitleYear

D1120908Loudspeaker2026 D1120909Loudspeaker2026 D1118563Loudspeaker2026 12,564,300Cleaner2026 12,507,855Cleaner nozzle with brush and removal member2025 12,478,233Nozzle part and robot cleaner including same2025 12,332,426Beam steering device2025 12,311,474Field girth welding technology for high manganese steel slurry pipelines2025 12,285,824Methods of welding high manganese steel with step-out weld zone erosion-corrosion resistance2025 D1047950Electronic device2024 12,082,765Vacuum cleaner2024 12,074,480Intelligent power generation module2024 D1035605Electronic device2024 11,883,906High manganese steel pipe with step-out weld zone erosion-corrosion resistance and method of making the same2024 11,793,375Conversion member and electric cleaner including the same2023 11,737,223Foldable electronic device including a sliding-type hinge structure beneath a flexible display2023 11,559,181Vacuum suctioning unit2023 11,540,682Cleaner2023 11,531,378Electronic device including flexible display and hinge structure2022 11,523,721Vacuum cleaner2022 11,487,378Electronic device2022 11,447,4862-amino-benzimidazole derivatives and their use as 5-lipoxygenase and/or prostaglandin E synthase inhibitors2022 11,430,621DC circuit breaker2022 11,419,469Cleaner2022 11,344,168Cleaning appliance2022 11,311,162Vacuum cleaner2022 11,191,404Cleaner2021 11,160,428Cleaner2021 11,147,423Dust collector and cleaner having the same2021

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

2021–2026Patents assigned to LG ELECTRONICS INC (15)· patent assignee history

2021–2026Based in KR· patent location history

2022–2026Patents assigned to SAMSUNG ELECTRONICS CO LTD (7)· patent assignee history

2024–2025Patents assigned to EXXONMOBIL RES & ENG CO (2)· patent assignee history

2024–2025Patents assigned to POSCO (2)· patent assignee history

2024Patents assigned to AVL SOFTWARE & FUNCTIONS GMBH (1)· patent assignee history

Inventor activity

Assignee and location history derived from the patent record.

Assignees

Assignee	Patents	Span
LG ELECTRONICS INC	15	2021–2026
SAMSUNG ELECTRONICS CO LTD	7	2022–2026
EXXONMOBIL RES & ENG CO	2	2024–2025
POSCO	2	2024–2025
AVL SOFTWARE & FUNCTIONS GMBH	1	2024

Locations

Location	Patents	Span
KR	29	2021–2026