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DONGNAN ELEVATOR CO LTD

Overview
  • Total Patents
    50
  • GoodIP Patent Rank
    32,738
  • Filing trend
    ⇩ 63.0%
About

DONGNAN ELEVATOR CO LTD has a total of 50 patent applications. It decreased the IP activity by 63.0%. Its first patent ever was published in 2010. It filed its patents most often in China, WIPO (World Intellectual Property Organization) and United States. Its main competitors in its focus markets packaging and shipping, civil engineering and mechanical elements are L G IND SYSTEMS CO LTD, SHAANXI XIAOXI ELECTRICAL AND MECHANICAL TECH CO LTD and JEIL ESCALATOR CO LTD.

Patent filings in countries

World map showing DONGNAN ELEVATOR CO LTDs patent filings in countries

Patent filings per year

Chart showing DONGNAN ELEVATOR CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Qin Jiancong 41
#2 Yang Jianrong 26
#3 Zhu Zhencai 25
#4 Cao Guohua 22
#5 Ma Yiping 19
#6 Ma Lingyun 18
#7 Zhao Zhen 14
#8 Peng Weihong 14
#9 Zhou Gongbo 12
#10 Gao Ming 11

Latest patents

Publication Filing date Title
CN111186737A Intelligent elevator leveling system and method based on machine room guide wheel position adjustment
CN111232779A Intelligent elevator leveling system and method based on rope end position adjustment
CN111153309A Combined and independent hybrid drive double-car elevator and driving method thereof
CN110436290A Without hoistway elevator running space safety system
CN109867177A Network-type intelligent automobile elevator
CN109795941A Car elevator swing type automatic telescopic limits retention device
CN109850724A Car elevator flatly moving type automatic telescopic limits retention device
CN108910669A A kind of escalator armrest system
CN108910660A A kind of elevator
CN108946402A A kind of compound building elevator
CN108861989A The guard bar device of escalator
CN107840220A A kind of anti-shear of elevator door and method
CN107954296A A kind of fabricated construction elevator shaft and elevator
CN107785858A A kind of swelling device for oblique elevator trailing cable
CN107651530A Lift
CN107673160A Shallow pit type helistop lift
CN107673170A Deep pit type helistop lift
CN107618965A The door lock interlocking mechanism of lift on ships hinge for fireproof door
CN107445006A A kind of oblique elevator safety tongs experimental rig and test method
CN107489258A The prefabricated pit of elevator hoistways, elevator hoistways pit method of construction and installation elevator