DONGGUAN YUTONG OPTICAL TECH CO LTD has a total of 123 patent applications. It decreased the IP activity by 73.0%. Its first patent ever was published in 2016. It filed its patents most often in China and Republic of Korea. Its main competitors in its focus markets optics, measurement and machines are GUANGDONG XUYE OPTOELECTRONICS TECH CO LTD, ABILITY OPTO-ELECTRONICS TECHNOLOGY CO LTD and CALIN TECH CO LTD.
# | Country | Total Patents | |
---|---|---|---|
#1 | China | 121 | |
#2 | Republic of Korea | 2 |
# | Industry | |
---|---|---|
#1 | Optics | |
#2 | Measurement | |
#3 | Machines | |
#4 | Audio-visual technology |
# | Technology | |
---|---|---|
#1 | Optical systems | |
#2 | Cameras | |
#3 | Measuring length, angles and areas | |
#4 | Shaping of plastics | |
#5 | Testing of structures | |
#6 | Certain plastics | |
#7 | Television | |
#8 | Analysing materials |
# | Name | Total Patents |
---|---|---|
#1 | He Jianwei | 70 |
#2 | Zhang Pinguang | 43 |
#3 | Zhang Lei | 25 |
#4 | Liu Guanlu | 22 |
#5 | Mi Shilong | 22 |
#6 | Mao Caiying | 18 |
#7 | Li Zemin | 11 |
#8 | Zhang Zhanjun | 10 |
#9 | Jin Yonghong | 8 |
#10 | Han Ni | 7 |
Publication | Filing date | Title |
---|---|---|
CN112180534A | Bonded lens structure and optical lens | |
CN112130289A | Black light lens | |
CN112130288A | Black light lens | |
CN112130274A | Lens focusing device | |
CN112034597A | Fixed focus lens | |
CN111983789A | Fisheye lens | |
CN111983788A | Wide-angle lens | |
CN111897099A | Fixed focus lens | |
CN111897106A | Wide-angle lens | |
CN111796401A | Ultra-wide angle lens | |
CN111796402A | Fixed focus lens | |
CN111722382A | Visual lens | |
CN111722369A | Ultra-wide angle lens | |
CN111722381A | Visual lens | |
CN111722467A | Device for detecting resolving power of lens module | |
CN111693258A | Testing device and testing method for zoom stroke of lens | |
CN111679535A | Single focus lens switching mechanism | |
CN111610617A | Fixed focus lens | |
CN111562664A | Zoom lens | |
CN111562663A | Zoom lens |