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PARKER LTD FREDERICK

Overview
  • Total Patents
    92
About

PARKER LTD FREDERICK has a total of 92 patent applications. Its first patent ever was published in 1930. It filed its patents most often in United Kingdom, Canada and Germany. Its main competitors in its focus markets chemical engineering, machines and civil engineering are ASTEC IND, FUJIAN TIETUO MACHINERY CO LTD and FUJIAN TIETIO MACHINERY CO LTD.

Patent filings in countries

World map showing PARKER LTD FREDERICKs patent filings in countries
# Country Total Patents
#1 United Kingdom 53
#2 Canada 10
#3 Germany 9
#4 France 7
#5 United States 5
#6 Spain 4
#7 Switzerland 2
#8 Finland 1
#9 Italy 1

Patent filings per year

Chart showing PARKER LTD FREDERICKs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Parker Frederick William 15
#2 Parker Kenneth James 7
#3 William Parker Frederick 6
#4 Parker Frederick W 6
#5 Jervis Dennis 5
#6 Stirley John 2
#7 Sims Ernest James 2
#8 Garland Norman Clarence 2
#9 Parker Roland James 2
#10 Garland Norman C 1

Latest patents

Publication Filing date Title
CA1060278A Production of aggregate material coated with bituminous binder
DE2343237A1 DEVICE FOR PROCESSING OR TREATMENT OF MATERIAL SUCH AS STONE, GRAVEL, ASPHALT OR THE SAME
GB1394436A Mixing apparatus
GB1416153A Materials working and or handling equipment
GB1354095A Crushers
GB1354094A Crushers
GB1292721A Oil burner primarily for heating or drying apparatus
GB1204551A Improvements in or relating to vibrating screens
GB1180036A A Plant for Washing Bulk Material.
GB1186677A Improvements in Bucket Conveyors
GB1097416A A plant for washing bulk material
GB1099163A Vibratory hopper and feeder
US3352502A Rotary impact breakers
DE1288887B Blow bar fastening for impact mills
GB1049660A Improvements in or relating to rotary impact breakers
GB1033752A Weight indicators
GB1002227A Improvements in or relating to impact breakers
GB1021865A Winching system
GB1039682A Paddle mixer
GB975296A An improvement in plant for washing bulk material