Learn more

HEAT EXCHANGERS AFRICA LTD

Overview
  • Total Patents
    22
About

HEAT EXCHANGERS AFRICA LTD has a total of 22 patent applications. Its first patent ever was published in 1969. It filed its patents most often in South Africa, Germany and Belgium. Its main competitors in its focus markets machine tools, thermal processes and machines are CALUMET & HECLA CORP, WOLVERINE TUBE COMPANY and HOWELL & COMPANY LTD.

Patent filings in countries

World map showing HEAT EXCHANGERS AFRICA LTDs patent filings in countries
# Country Total Patents
#1 South Africa 10
#2 Germany 3
#3 Belgium 2
#4 France 2
#5 United Kingdom 2
#6 United States 2
#7 Canada 1

Patent filings per year

Chart showing HEAT EXCHANGERS AFRICA LTDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Etter R 5
#2 Thomas Hector 5
#3 Thomas H 4
#4 Hague Donald 2
#5 Harmsen F 1

Latest patents

Publication Filing date Title
DE2921746A1 Heat exchanger ribbed composite tube - is ribbed by rotating rollers with smooth zones where required
US4299106A Finned tubing
ZA7803111B Finned tubing
ZA7803112B Finned tubing
ZA7700808B Improvements in or relating to heat exchangers
ZA7604761B Finned tubing
ZA7604762B Manufacture of dished vessel ends
ZA7602306B Improvements in and relating to bimetal finned tubing
ZA7504640B Improvements in or relating to heat exchangers
ZA7504456B Improvements in or relating to heat exchangers
ZA7407341B Improvements in or relating to heat exchangers
ZA7205003B Improvements in or relating to heat exchangers
GB1281557A Manufacture of finned tubing