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HOLFELD BRENDA MARGARET

Overview
  • Total Patents
    17
About

HOLFELD BRENDA MARGARET has a total of 17 patent applications. Its first patent ever was published in 1999. It filed its patents most often in South Africa, Australia and WIPO (World Intellectual Property Organization). Its main competitors in its focus markets machine tools are INDIANA STEEL AND WIRE COMPANY, SAVELEV VLADIMIR M and ATHIMON FRANCIS.

Patent filings in countries

World map showing HOLFELD BRENDA MARGARETs patent filings in countries
# Country Total Patents
#1 South Africa 15
#2 Australia 1
#3 WIPO (World Intellectual Property Organization) 1

Patent filings per year

Chart showing HOLFELD BRENDA MARGARETs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Machine tools

Focus technologies

# Technology
#1 Metal wire processing

Top inventors

# Name Total Patents
#1 Holfeld Barry Graeme 10
#2 Graeme Holfeld Barry 4
#3 Graemer Holfeld Barry 1
#4 Holfeld Brenda Margaret 1
#5 Holfeld Barry Greame 1

Latest patents

Publication Filing date Title
ZA200601404B Prestressing device and method of restricting expansion thereof
ZA200601405B Energiser
ZA200601403B Coupler for use with pressurised fluid
ZA200507440B Energiser and energiser valve
ZA200507441B Energiser
ZA200506693B One-way valve and energiser
ZA200503142B Energiser.
ZA200303379B Energiser.
ZA200301509B Valve.
ZA200301508B Energiser and method of making an energiser.
ZA200206933B One-way valve and energiser.
ZA200206683B A one-way valve.
ZA200200077B An energiser.
ZA200105859B Method of making an energiser.
ZA200102362B Energiser and method of making an energiser.
AU4527499A Material for barriers