Electromagnetic actuator system
US-2026088204-A1 · Mar 26, 2026 · US
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Ji Qigen patents
Ji Qigen is listed as an inventor on 31 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Ji Qigen |
| Total patents | 31 |
| First publication | Sep 21, 2017 |
| Latest publication | Mar 26, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Wristbands with magnetic coupling
US-12453396-B2 · Oct 28, 2025 · US
Stylus with attachment detection
US-12455639-B2 · Oct 28, 2025 · US
Keyboard accessory for electronic device
US-12411558-B2 · Sep 9, 2025 · US
Stylus with attachment detection
US-2025110583-A1 · Apr 3, 2025 · US
Keyboard accessory for electronic device
US-2024385697-A1 · Nov 21, 2024 · US
Items with hidden magnets
US-12127651-B1 · Oct 29, 2024 · US
Wristbands with magnetic coupling
US-2024237788-A1 · Jul 18, 2024 · US
Wristbands with magnetic coupling
US-11944167-B2 · Apr 2, 2024 · US
Magnet alternating pole array magnetized by one side magnetization to boost magnetic attraction force
US-11923134-B2 · Mar 5, 2024 · US
Recent patents
Latest publications not already listed above.
Magnetic ear tip attachment with polarity
US-2024073576-A1 · Feb 29, 2024 · US
Wristbands with magnetic coupling
US-2023078725-A1 · Mar 16, 2023 · US
Wristbands with magnetic coupling
US-11589657-B2 · Feb 28, 2023 · US
Wristbands with magnetic coupling
US-11553766-B2 · Jan 17, 2023 · US
Magnet array for securing wireless listening devices
US-11206473-B2 · Dec 21, 2021 · US
Wristbands with magnetic coupling
US-2021267325-A1 · Sep 2, 2021 · US
Wristbands with magnetic coupling
US-11033083-B1 · Jun 15, 2021 · US
Attachment devices for inductive interconnection systems
US-11031164-B2 · Jun 8, 2021 · US
Magnet alternating pole array magnetized by one side magnetization to boost magnetic attraction force
US-2021074459-A1 · Mar 11, 2021 · US
Wristbands with magnetic coupling
US-2020367613-A1 · Nov 26, 2020 · US
Inductive interconnection system
US-10725515-B2 · Jul 28, 2020 · US
Hybrid retention and sensor shunt for wireless listening devices
US-2020107106-A1 · Apr 2, 2020 · US
Magnet array for securing wireless listening devices
US-2020107110-A1 · Apr 2, 2020 · US
Inductive interconnection system
US-2019278349-A1 · Sep 12, 2019 · US
Attachment devices for inductive interconnection systems
US-2019138073-A1 · May 9, 2019 · US
Inductive interconnection system
US-2019103764-A1 · Apr 4, 2019 · US
Magnetic pairing for lateral restoring force
US-10225384-B2 · Mar 5, 2019 · US
Case for a portable electronic device
US-10210975-B1 · Feb 19, 2019 · US
Haptic output device
US-2017344115-A1 · Nov 30, 2017 · US
Haptic output device
US-9829981-B1 · Nov 28, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Apple Inc | 31 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| A44D2203/00 | 9 |
| A44C5/2071 | 9 |
| G06F1/1626 | 7 |
| G06F3/03545 | 7 |
| G06F2200/1632 | 7 |