Reusable cartridge systems, devices, and methods
US-12564253-B2 · Mar 3, 2026 · US
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Lee Ji patents
Lee Ji is listed as an inventor on 47 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Lee Ji |
| Total patents | 47 |
| First publication | Apr 28, 2015 |
| Latest publication | Mar 3, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Predictive application for AI-powered dispensing device for hair treatment
US-12538972-B2 · Feb 3, 2026 · US
Combination of liquid colorant technology and developer housed in a cartridge and paired with the colorsonic device with optimized number of static mixers and flow-path design, that dispenses colorant mixture with an ideal, non-dripping aspect
US-12520925-B2 · Jan 13, 2026 · US
Cosmetic applicator with adjustable applicator tip
US-12490822-B2 · Dec 9, 2025 · US
Formulation delivery priming methods
US-12426693-B2 · Sep 30, 2025 · US
Systems and methods for generating personalized skincare formulations based on biomarker analysis
US-12406293-B2 · Sep 2, 2025 · US
Multi-camera video capture for accurate skin tone measurement
US-12394098-B2 · Aug 19, 2025 · US
Device autocleaning system based on multi canal and smart formula cartridge
US-12349778-B2 · Jul 8, 2025 · US
Formulation delivery systems, devices, and methods
US-12274594-B2 · Apr 15, 2025 · US
Control systems, devices, and methods for formulation delivery
US-12239196-B2 · Mar 4, 2025 · US
Recent patents
Latest publications not already listed above.
Adapter with interchangeable element for connecting makeup applicator to an external device
US-12133591-B2 · Nov 5, 2024 · US
Reusable cartridge systems, devices, and methods
US-12096833-B2 · Sep 24, 2024 · US
Multi-camera video capture for accurate skin tone measurement
US-2024242384-A1 · Jul 18, 2024 · US
Combination of liquid colorant technology and developer housed in a cartridge and paired with the colorsonic device with optimized number of static mixers and flow-path design, that dispenses colorant mixture with an ideal, non-dripping aspect
US-2024172858-A1 · May 30, 2024 · US
Valve system for formula cartridge
US-11896102-B2 · Feb 13, 2024 · US
Device autocleaning system based on multi canal and smart formula cartridge
US-2024032671-A1 · Feb 1, 2024 · US
Reusable cartridge systems, devices, and methods
US-2024023691-A1 · Jan 25, 2024 · US
Personalized skincare recommendations based on biomarker analysis
US-11741523-B2 · Aug 29, 2023 · US
Reusable cartridge systems, devices, and methods
US-11712099-B2 · Aug 1, 2023 · US
Reusable cartridge systems, devices, and methods
US-2023218057-A1 · Jul 13, 2023 · US
Hair treatment cartridges for functional showerhead
US-2023212845-A1 · Jul 6, 2023 · US
Ai-powered dispensing device for hair treatment
US-2023210241-A1 · Jul 6, 2023 · US
Predictive application for ai-powered dispensing device for hair treatment
US-2023210245-A1 · Jul 6, 2023 · US
Systems and methods for generating personalized skincare formulations based on biomarker analysis
US-2023206300-A1 · Jun 29, 2023 · US
Reusable cartridge systems, devices, and methods
US-2023189958-A1 · Jun 22, 2023 · US
Formulation delivery priming methods
US-2023189956-A1 · Jun 22, 2023 · US
Formulation delivery systems, devices, and methods
US-2023117798-A1 · Apr 20, 2023 · US
Formulation delivery systems, devices, and methods
US-11534263-B2 · Dec 27, 2022 · US
Cosmetic applicator with adjustable applicator tip
US-2022378172-A1 · Dec 1, 2022 · US
Systems and methods for generating personalized skincare formulations based on biomarker analysis
US-11501356-B2 · Nov 15, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Oreal | 39 |
| Google Inc | 8 |
| Google Llc | 2 |
| Lee Ji | 1 |
| Lum Vivian | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A45D2034/005 | 14 |
| A45D19/026 | 11 |
| A45D34/042 | 9 |
| A45D19/022 | 8 |
| A45D34/04 | 8 |