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HOLFELD BARRY GRAEME

Overview
  • Total Patents
    31
  • GoodIP Patent Rank
    124,931
About

HOLFELD BARRY GRAEME has a total of 31 patent applications. Its first patent ever was published in 2000. It filed its patents most often in South Africa, WIPO (World Intellectual Property Organization) and Australia. Its main competitors in its focus markets mechanical elements and civil engineering are GAG GRUBENAUSBAU GMBH, ANHUI TONGDU FLOW TECH CO LTD and DOERING G M B H.

Patent filings in countries

World map showing HOLFELD BARRY GRAEMEs patent filings in countries
# Country Total Patents
#1 South Africa 25
#2 WIPO (World Intellectual Property Organization) 4
#3 Australia 2

Patent filings per year

Chart showing HOLFELD BARRY GRAEMEs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Civil engineering

Focus technologies

# Technology
#1 Venting or aerating devices
#2 Shafts

Top inventors

# Name Total Patents
#1 Holfeld Barry Graeme 28
#2 Barry Graeme Holfeld 2
#3 Shaun Swanepoel 1
#4 Brenda Margaret Holfeld 1
#5 Holfeld Justin Roscoe 1

Latest patents

Publication Filing date Title
WO2020225735A1 An inflatable rock bolt
ZA201607450B Valve
ZA201607451B Coupler
WO2017025933A1 An inflatable rock bolt
WO2016207868A1 An inflatable rock bolt
ZA201501429B Filler valve connector
ZA201500359B Valve
ZA201500108B Coupler
ZA201500109B Valve
ZA201409378B A wedge
ZA201407621B Valve assembly
ZA201404323B Coupler
AU2013101725A4 A valve for use with a hydraulically activated device
ZA201302403B Energiser
ZA201003826B Prestressing device
ZA200907396B Valve
ZA200906716B Support prop
ZA200905073B Prestressing device
ZA200905074B Prestressing device
ZA200810867B Prestresser