Inventor
Lei Cheng
Inventor
Wellesley, MA, US
Overview
Patents· 22 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
H04Rprimary
H04RLoudspeakers, microphones, gramophone pick-ups or like acoustic electromechanical transducers14%
H01MProcesses or means, e.g. batteries, for the direct conversion of chemical energy into electrical energy9%
Y02EReduction of greenhouse gas [ghg] emissions, related to energy generation, transmission or distribution9%
Y02PClimate change mitigation technologies in the production or processing of goods7%
C04BLime, magnesia5%
G06FElectric digital data processing5%
G10KSound-producing devices5%
A61KPreparations for medical, dental or toiletry purposes3%
A61PSpecific therapeutic activity of chemical compounds or medicinal preparations3%
A61FFilters implantable into blood vessels2%
PatentTitleYear
10,866,162Online fault detection device installed in train car and used for high-speed train running component202010,804,564Annealed garnet electrolyte separators202010,678,532Method and apparatus for upgrading application202010,623,846Earpieces employing viscoelastic materials202010,553,890Aqueous redox flow batteries202010,475,435Earphone having acoustic impedance branch for damped ear canal resonance and acoustic signal coupling201910,459,437Air-ground heterogeneous robot system path planning method based on neighborhood constraint201910,392,220Material pipe and feeding system201910,361,455Annealed garnet electrolyte separators201910,347,937Lithium-stuffed garnet electrolytes with secondary phase inclusions201910,015,581Feedback microphone adaptor for noise canceling headphone20189,966,630Annealed garnet electrolyte separators20189,813,794'Noise reduction with in-ear headphone'20179,792,893'In-ear active noise reduction earphone'20179,716,936'Noise reduction with in-ear headphone'20179,635,452'Noise reduction with in-ear headphone'20179,629,884'Compositions and methods for increasing lifespan and health span'20179,628,903'Microspeaker acoustical resistance assembly'20179,596,725'Method and circuit for constant current buck converter'20179,155,744'Pharmaceutical composition and method for regenerating myofibers in the treatment of muscle injuries'20156,233,595'Fast multiplication of floating point values and integer powers of two'20015,974,510'Method for testing the non-cacheable region functioning of a cache memory controller'1999Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1999–2001Patents assigned to ADVANCED MICRO DEVICES INC (2)· patent assignee history
1999–2001Based in Austin, TX, US· patent location history
2015–2017Patents assigned to LI MING (2)· patent assignee history
2017–2020Patents assigned to BOSE CORP (8)· patent assignee history
2017–2020Based in Wellesley, MA, US· patent location history
2018–2020Patents assigned to QUANTUMSCAPE CORP (4)· patent assignee history
2018–2020Based in San Jose, CA, US· patent location history
2020Patents assigned to ALIBABA GROUP HOLDING LTD (1)· patent assignee history
2020Based in Anhui, CN· patent location history
2020Based in Hangzhou, CN· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| BOSE CORP | 8 | 2017–2020 |
| QUANTUMSCAPE CORP | 4 | 2018–2020 |
| ADVANCED MICRO DEVICES INC | 2 | 1999–2001 |
| LI MING | 2 | 2015–2017 |
| ALIBABA GROUP HOLDING LTD | 1 | 2020 |
Locations
| Location | Patents | Span |
|---|---|---|
| Wellesley, Massachusetts, US | 7 | 2017–2020 |
| San Jose, California, US | 4 | 2018–2020 |
| Austin, Texas, US | 2 | 1999–2001 |
| Anhui, CN | 1 | 2020 |
| Hangzhou, CN | 1 | 2020 |