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SHANGHAI HONGJI METAL PRODUCTS CO LTD

Overview
  • Total Patents
    18
  • GoodIP Patent Rank
    98,316
  • Filing trend
    ⇧ 100.0%
About

SHANGHAI HONGJI METAL PRODUCTS CO LTD has a total of 18 patent applications. It increased the IP activity by 100.0%. Its first patent ever was published in 2009. It filed its patents most often in China. Its main competitors in its focus markets machine tools, surface technology and coating and machines are NAT MACHINERY LLC, NINGBO SIJIN MACHINERY CO LTD and DAFENG ZHONGDE PREC FORGING CO LTD.

Patent filings in countries

World map showing SHANGHAI HONGJI METAL PRODUCTS CO LTDs patent filings in countries
# Country Total Patents
#1 China 18

Patent filings per year

Chart showing SHANGHAI HONGJI METAL PRODUCTS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Xie Xiangjun 17
#2 Wu Tiezhong 13
#3 Gu Zhijie 3
#4 Ma Yufang 1
#5 Jiao Demei 1
#6 Tiezhong Wu 1
#7 Zheng Huifa 1
#8 Liu Xinling 1

Latest patents

Publication Filing date Title
CN111940533A Large washer stepped sleeve forming process and die structure
CN112091161A Forming process of special-shaped nut blank
CN112077256A Cold heading forming process of double-head spline tooth connecting sleeve
CN111958067A Tapping and self-checking integrated equipment
CN112045370A Machining process of square driving sleeve
CN111014564A Chamfering forming process and die structure for middle hexagonal flange of stud bolt
CN111014563A Lower knurling process of extrusion molding screw product head and main die structure
CN111097867A Automobile timing chain tensioner perforating pin shaft forming process
CN111101177A Electroplating process for rod pin for automobile
CN109551180A A kind of processing technology of threaded long casing
CN109570922A A kind of processing technology of hollow Step Shaft
CN107931497A Combine the cold-heading molding technique of fixed link
CN105964832A Automatic riveting device for plunger latch barrels and connection pieces
CN104088541A Novel latch head driving plate and multistage rolling station structure of special continuous die for latch head driving plate
CN104088542A Novel structure of automobile lock latch head shaft cap and special riveting tool for automobile lock latch head shaft cap
CN104110181A Automobile lock latch driving shaft improved structure and continuous stretch forming station structure
CN104097693A Novel automobile arm pipe structure and special simple die for shaping same
CN101564813A Process for machining cold-forging plunger latch head