Mask apparatus
US-12582178-B2 · Mar 24, 2026 · US
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Baek Sangkyun patents
Baek Sangkyun is listed as an inventor on 23 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Baek Sangkyun |
| Total patents | 23 |
| First publication | Jul 25, 2019 |
| Latest publication | Mar 24, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Mask apparatus with rear surface inlet, outlet and filter assembly
US-12521579-B2 · Jan 13, 2026 · US
Mask apparatus
US-12063990-B2 · Aug 20, 2024 · US
Mask apparatus
US-11951337-B2 · Apr 9, 2024 · US
Mask apparatus
US-11931604-B2 · Mar 19, 2024 · US
Air purifier
US-11885525-B2 · Jan 30, 2024 · US
Air purifier
US-11761649-B2 · Sep 19, 2023 · US
Mask apparatus
US-11707097-B2 · Jul 25, 2023 · US
Air purifier
US-11598537-B2 · Mar 7, 2023 · US
Blower
US-2023060198-A1 · Mar 2, 2023 · US
Recent patents
Latest publications not already listed above.
Blower
US-2023067624-A1 · Mar 2, 2023 · US
Mask apparatus
US-2023017783-A1 · Jan 19, 2023 · US
Mask apparatus
US-2023020450-A1 · Jan 19, 2023 · US
Mask apparatus
US-2023015473-A1 · Jan 19, 2023 · US
Mask apparatus
US-2023018147-A1 · Jan 19, 2023 · US
Mask apparatus
US-2023013005-A1 · Jan 19, 2023 · US
Mask apparatus
US-2021402223-A1 · Dec 30, 2021 · US
Mask apparatus
US-2021402229-A1 · Dec 30, 2021 · US
Mask apparatus
US-2021378326-A1 · Dec 9, 2021 · US
Mask apparatus
US-2021378325-A1 · Dec 9, 2021 · US
Air purifier
US-2021010698-A1 · Jan 14, 2021 · US
Air purifier
US-2021010699-A1 · Jan 14, 2021 · US
Air purifier
US-2019226698-A1 · Jul 25, 2019 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Lg Electronics Inc | 23 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A62B18/08 | 15 |
| A62B18/006 | 15 |
| A62B18/025 | 15 |
| A62B23/02 | 13 |
| A62B18/003 | 7 |