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CHENG QIANYAN

Overview
  • Total Patents
    15
  • GoodIP Patent Rank
    119,743
  • Filing trend
    ⇩ 83.0%
About

CHENG QIANYAN has a total of 15 patent applications. It decreased the IP activity by 83.0%. Its first patent ever was published in 2011. It filed its patents most often in United States, China and Australia. Its main competitors in its focus markets civil engineering are WUHAN PULIN GUANGTONG TECH CO LTD, CHUBB LOCKS LTD and CHAUVAT SOFRANQ.

Patent filings per year

Chart showing CHENG QIANYANs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Civil engineering

Top inventors

# Name Total Patents
#1 Cheng Qianyan 15

Latest patents

Publication Filing date Title
US2021054663A1 Auto-latching/locking mortise lock for sliding door
CN110761617A Handle locking type mechanical lock
CN109881990A A kind of sensing control type electromechanical locks
US2019024407A1 Surface mounted barn door privacy lock
US2018112435A1 Barn door with privacy lock
CN107100455A Sliding door door lock
US2016208526A1 Lock body with adjustable strike plate for sliding doors
US2015292241A1 Easily-assembled modular door lock
CN103938928A Modular door lock easy to assemble
US2013056612A1 Universal Multipoint Lock Lever Set For Patio Doors With Non-Standard Mounting Holes