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PORTALS WATER TREATMENT LTD

Overview
  • Total Patents
    29
About

PORTALS WATER TREATMENT LTD has a total of 29 patent applications. Its first patent ever was published in 1973. It filed its patents most often in United Kingdom, South Africa and Australia. Its main competitors in its focus markets chemical engineering, environmental technology and foods and drinks are HAMBURGER & CO KG GEORG, GRUNDFOS BIOBOOSTER AS and MAX PRUESS DR ING.

Patent filings in countries

World map showing PORTALS WATER TREATMENT LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 South Africa 9
#3 Australia 5
#4 Ireland 4
#5 France 1
#6 United States 1

Patent filings per year

Chart showing PORTALS WATER TREATMENT LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Stevenson D 3
#2 Brignal W 3
#3 Goddard J 2
#4 Brignal W J 2
#5 Rowe M C 1
#6 Stevenson D G 1
#7 Metcalf S 1
#8 Metcalf S M 1
#9 Goldsmith F W 1
#10 Rowe Melvin Charles 1

Latest patents

Publication Filing date Title
GB1531807A Inclined separation plates
GB1559018A Method and apparatus for dissolving a gas in and removing a gas from a liquid
GB1534942A Electrode assembly for an electrolytic cell
GB1545559A Aeration in a flotation process
GB1546683A Apparatus for backwashing granular-bed filters
GB1501700A Lactose hydrolysis using ion exchange resins
ZA755618B Apparatus and process for the purification of water
GB1483587A Porous polymers and their production
GB1459195A Gas flotation purification of liquids