Wellesley, Massachusetts
United States
26
2025-11-20
The entities that hold a legal rights for patent applications filed by inventor Cheng Lei:
Lei Cheng from Wellesley, US has applied for patents for these inventions. The list has both pending applications and granted patents:
WEARABLE DEVICE WITH SPEECH EHNACEMENT
#2 | 2025-07-31WEARABLE ACTIVE NOISE REDUCTION (ANR) DEVICE HAVING LOW FREQUENCY FEEDBACK LOOP MODULATION
#3 | 2025-06-12Active Noise Reduction Earbud
#4 | 2025-04-24Active Noise Reduction Control for Non-Occluding Wearable Audio Devices
#5 | 2024-08-29HIGHLY COMPLIANT MINIATURE TRANSDUCER
#6 | 2024-04-04Wearable active noise reduction (ANR) device having low frequency feedback loop modulation
#7 | 2024-03-07HEADPHONES
#8 | 2024-02-22Active noise reduction earbud
#9 | 2023-12-14Active noise reduction control for non-occluding wearable audio devices
#10 | 2023-05-11Wearable active noise reduction (ANR) device having low frequency feedback loop modulation
#11 | 2023-03-30Active noise reduction earbud
#12 | 2023-03-09Hearing assistance devices and methods of generating a resonance within a hearing assistance device
#13 | 2022-12-29Active noise reduction earbud
#14 | 2022-09-15Highly compliant miniature transducer
#15 | 2022-02-17EARPIECE PORTING
#16 | 2022-01-20Wearable active noise reduction (ANR) device having low frequency feedback loop modulation
#17 | 2021-09-09Wearable active noise reduction (ANR) device having low frequency feedback loop modulation
#18 | 2021-05-27Earpieces and related articles and devices
#19 | 2019-11-12Earphone having acoustic impedance branch for damped ear canal resonance and acoustic signal coupling
#20 | 2018-06-07Earpieces employing viscoelastic materials
#21 | 2017-12-14Feedback microphone adaptor for noise canceling headphone
#22 | 2017-10-17In-ear active noise reduction earphone
#23 | 2017-06-29Noise reduction with in-ear headphone
#24 | 2017-06-01Noise reduction with in-ear headphone
#25 | 2017-02-09Noise reduction with in-ear headphone
#26 | 2016-06-23Microspeaker acoustical resistance assembly
1574439 ⎘