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CHANGZHOU AMT CO LTD

Overview
  • Total Patents
    30
  • GoodIP Patent Rank
    53,158
  • Filing trend
    ⇧ 200.0%
About

CHANGZHOU AMT CO LTD has a total of 30 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 2014. It filed its patents most often in China and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets audio-visual technology, macromolecular chemistry and polymers and basic materials chemistry are ODA TOSHIO, MERRY ELECTRONICS HUIZHOU CO LTD and PHL AUDIO.

Patent filings in countries

World map showing CHANGZHOU AMT CO LTDs patent filings in countries

Patent filings per year

Chart showing CHANGZHOU AMT CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Meng Xianzhen 14
#2 Wei Peng 12
#3 Yi Pengfei 7
#4 Li Jiawei 6
#5 Yang Yule 5
#6 He Xinyang 4
#7 He Chaoyang 4
#8 Yang Lei 4
#9 Chen Chen 4
#10 He Zhaoyang 4

Latest patents

Publication Filing date Title
CN111601205A Horn microphone device
CN111526450A Horn microphone device
CN111372172A Balanced armature device
CN111031454A Electronic equipment and loudspeaker device thereof
WO2021056292A1 Loudspeaker device
WO2021056293A1 Horn device
WO2021056294A1 Horn apparatus
WO2020057655A1 Horn structure and magnetic circuit system thereof
CN109362004A A kind of horn structure
CN109005488A A kind of moving-coil loudspeaker
CN108574920A A kind of dynamic iron unit
CN108810754A A kind of vibrating diaphragm and preparation method thereof
WO2018023842A1 Vibration diaphragm and manufacturing method thereof, and electroacoustic transducer
WO2018023843A1 Vibration diaphragm and coating method thereof, and electroacoustic transducer
CN106162450A A kind of vibrating diaphragm and preparation method thereof
CN105681998A Vibration film production technology of moving iron unit
CN104780495A Assembling fixture and assembling method for square iron and coil of moving iron unit
CN104785930A Manufacturing jig and manufacturing method for moving-iron unit square iron
CN104768118A Method for manufacturing vibrating diaphragms of moving-iron units with high efficiency
WO2016033911A1 Dual-speaker-type in-ear earplug