Inventor
Lei Qin
Inventor
Shenzhen, CN
Overview
Patents· 25 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
B41Jprimary
B41JTypewriters11%
G06FElectric digital data processing11%
H04LTransmission of digital information, e.g. telegraphic communication11%
H04WWireless communication networks11%
LOC146%
G06KGraphical data reading4%
G06VImage or video recognition or understanding4%
G08BSignalling systems, e.g. personal calling systems4%
A61BDiagnosis2%
B01JChemical or physical processes, e.g. catalysis or colloid chemistry2%
PatentTitleYear
10,645,579Account login method, apparatus, and system202010,577,891Using horizontal directional drilling and liquid nitrogen cyclic freeze-thaw process to improve permeability in gas drainage202010,369,559Composite catalyst, preparation process thereof, and process for catalyzing the trimerization of butadiene using the composite catalyst201910,212,151Method for operating a designated service, service unlocking method, and terminal201910,009,767Account login method, apparatus, and system20189,954,850Service locking method, apparatuses and systems thereof20189,915,566'Smart lookdown function switch design for intrusion detectors'20189,910,694'Providing a custom virtual appliance'20189,796,187'Method for controlling light emission of ink cartridge, and ink cartridge'20179,545,217'Movement correction in MRI using a camera'20179,524,441'System and method for identity authentication based on face recognition, and computer storage medium'20169,508,499'Recreational vehicle beam switch assembly'20169,481,181'Ink cartridge chip, ink cartridge, and structural body'20169,446,598'Method and apparatus for controlling light emission of ink cartridge'20169,348,570'Providing a custom virtual appliance'2016D0747341'Portion of a display screen for a graphical user interface'2016D0746319'Portion of a display screen for a graphical user interface'2015D0740850'Portion of a display screen with animated graphical user interface'20159,063,229'Mirror used as microwave antenna for motion sensor'20158,971,619'Method and a device for extracting color features'20158,786,663'Method and equipment for realizing concurrency of voice and data'20148,733,909'Negative-pressure ink cartridge refilling device, system and method'20148,552,865'Self-test method for a microwave module'2013D0673230'Barbell plate'20128,333,461'Ink cartridge for inkjet printer'2012Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
2012–2017Patents assigned to QIN LEI (7)· patent assignee history
2012–2017Patents assigned to ZHUHAI NINESTAR MAN CO LTD (5)· patent assignee history
2012–2016Based in Guangdong, CN· patent location history
2013–2018Patents assigned to HONEYWELL INT INC (4)· patent assignee history
2013–2020Based in Shenzhen, CN· patent location history
2014–2017Based in Zhuhai, CN· patent location history
2015–2020Patents assigned to TENCENT TECH SHENZHEN CO LTD (8)· patent assignee history
2016–2018Patents assigned to IBM (2)· patent assignee history
2016–2018Based in Shanghai, CN· patent location history
2020Based in Xuzhou, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| TENCENT TECH SHENZHEN CO LTD | 8 | 2015–2020 |
| QIN LEIself | 7 | 2012–2017 |
| ZHUHAI NINESTAR MAN CO LTD | 5 | 2012–2017 |
| HONEYWELL INT INC | 4 | 2013–2018 |
| IBM | 2 | 2016–2018 |
Locations
| Location | Patents | Span |
|---|---|---|
| Shenzhen, CN | 8 | 2013–2020 |
| Zhuhai, CN | 4 | 2014–2017 |
| Guangdong, CN | 4 | 2012–2016 |
| Shanghai, CN | 2 | 2016–2018 |
| Xuzhou, CN | 1 | 2020 |