Learn more

CHANGZHOU NAIZHILI TOOLMAKING CO LTD

Overview
  • Total Patents
    42
  • GoodIP Patent Rank
    61,096
About

CHANGZHOU NAIZHILI TOOLMAKING CO LTD has a total of 42 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 machine tools, measurement and mechanical elements are SHENZHEN XINGUOYU PREC TOOLS LTD, GOMI RETSU and HITACHI TOOL ENG CO LTD.

Patent filings in countries

World map showing CHANGZHOU NAIZHILI TOOLMAKING CO LTDs patent filings in countries
# Country Total Patents
#1 China 42

Patent filings per year

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

Focus industries

Top inventors

# Name Total Patents
#1 Li Zhifen 42
#2 Mei Yongjie 11

Latest patents

Publication Filing date Title
CN110695722A Assembly quick-disassembly type milling cutter disc clamp
CN110681903A Milling cutter disc for processing plates
CN110681930A Thread milling cutter with continuous curve edge
CN110682235A Clamping tool for coating film on round nose cutter
CN110682123A Inner-cooling tungsten steel milling cutter clamp
CN110681904A Shaping milling cutter dish with polycrystalline diamond layer
CN110682122A Fixing clamp for tungsten steel milling cutter
CN110681901A Round nose knife with composite coating
CN110681902A Single-edge milling cutter with composite coating
CN110695723A Milling cutter disc clamp with positioning sleeve
CN110681907A High-speed cutting milling cutter with composite coating
CN104457532A Eccentric measurement device
CN104374268A Magnet measure
CN104374270A Special measuring tool for semicircular key groove
CN104374269A Longhole inner step hole length measuring device
CN104405887A Ratio adjusting valve for air gauge
CN104374286A Small hole chamfering depth measuring device
CN104374343A Bearing outer race groove diameter pneumatic measuring head
CN104677236A Multifunctional clamp plate
CN104374298A Pipe hole inner wall plain wire straightness measuring device