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CHANGZHOU YONGDA FASTENER LTD CO LTD

Overview
  • Total Patents
    16
About

CHANGZHOU YONGDA FASTENER LTD CO LTD has a total of 16 patent applications. Its first patent ever was published in 2013. It filed its patents most often in China. Its main competitors in its focus markets mechanical elements and machine tools are TIANBANG NAT ENGINEERING RES CT OF MEMBRANE TECHNOLOGY CO LTD, SANYU SEKKEI KK and BI MIRTH CORP.

Patent filings in countries

World map showing CHANGZHOU YONGDA FASTENER LTD CO LTDs patent filings in countries
# Country Total Patents
#1 China 16

Patent filings per year

Chart showing CHANGZHOU YONGDA FASTENER LTD CO LTDs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Machine tools

Focus technologies

# Technology
#1 Nails
#2 Workshop equipment
#3 Lubricating

Top inventors

# Name Total Patents
#1 Xu Yunfei 16

Latest patents

Publication Filing date Title
CN104421293A Double-end adjusting bolt
CN104421296A Bolt
CN104421295A Screw convenient to screw
CN104421309A Firm connecting bolt
CN104421292A Bolt with lubricating structure
CN104421294A Connecting bolt
CN104421297A Combined bolt
CN104421302A Screw structure
CN104421301A Screw fixing piece
CN104421306A Rapid screw-in screw
CN104421291A Bolt
CN104421312A Screw
CN104416558A Bolt storage plate
CN104416557A Partitioned screw putting disc
CN104422803A Electric meter box connecting screw
CN104421310A Screw locking device