Well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation and operation method thereof
US-12331602-B2 · Jun 17, 2025 · US
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Feng Kai patents
Feng Kai is listed as an inventor on 22 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Feng Kai |
| Total patents | 22 |
| First publication | May 5, 2015 |
| Latest publication | Jun 17, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Camera assembly and electronic device with fastened holder for efficient movement
US-12309470-B2 · May 20, 2025 · US
Well-killing system for ultra-deep well drilling with co-existence of overflow and lost circulation and operation method thereof
US-2025116163-A1 · Apr 10, 2025 · US
Path management
US-12074760-B2 · Aug 27, 2024 · US
Battery module, battery pack, and vehicle
US-11936056-B2 · Mar 19, 2024 · US
Display panel and display device
US-11747927-B2 · Sep 5, 2023 · US
Display panel and display device
US-11747934-B2 · Sep 5, 2023 · US
Communication with a device on nearby wireless network
US-11722953-B2 · Aug 8, 2023 · US
Camera Assembly and Electronic Device
US-2023141126-A1 · May 11, 2023 · US
Path management
US-2023084206-A1 · Mar 16, 2023 · US
Recent patents
Latest publications not already listed above.
Communication with a device on nearby wireless network
US-2023068195-A1 · Mar 2, 2023 · US
Echo cancellation in online conference systems
US-11516579-B2 · Nov 29, 2022 · US
Echo cancellation in online conference systems
US-2022329934-A1 · Oct 13, 2022 · US
Battery module, battery pack, and vehicle
US-2022181731-A1 · Jun 9, 2022 · US
Display panel and display device
US-2021405806-A1 · Dec 30, 2021 · US
Display panel and display device
US-2021405801-A1 · Dec 30, 2021 · US
Monitoring tickets on transportation systems
US-10902353-B2 · Jan 26, 2021 · US
Monitoring tickets on transportation systems
US-2018247230-A1 · Aug 30, 2018 · US
Monitoring tickets on transportation systems
US-2018247231-A1 · Aug 30, 2018 · US
Suspended Input Method, Apparatus, and Computer Storage Medium
US-2016335240-A1 · Nov 17, 2016 · US
Polycarbonate preparation method
US-9062154-B2 · Jun 23, 2015 · US
Method, system and device for removing media access control addresses
US-9026832-B2 · May 5, 2015 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| IBM | 9 |
| Kunshan Govisionox Optoelectronics Co Ltd | 4 |
| Huawei Tech Co Ltd | 3 |
| Univ China Petroleum East China | 2 |
| Huawei Digital Power Tech Co Ltd | 2 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| G06F3/0412 | 4 |
| G06F3/041 | 4 |
| G06Q20/327 | 3 |
| G06Q20/0457 | 3 |
| G07B15/02 | 3 |