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SHARPLES SPECIALTY CO

Overview
  • Total Patents
    282
About

SHARPLES SPECIALTY CO has a total of 282 patent applications. Its first patent ever was published in 1917. It filed its patents most often in United States, United Kingdom and France. Its main competitors in its focus markets machines, basic materials chemistry and chemical engineering are PHILIP TRIEST SHARPLES, SHARPLES PHILIP TRIEST and SHARPLES CORP.

Patent filings in countries

World map showing SHARPLES SPECIALTY COs patent filings in countries
# Country Total Patents
#1 United States 121
#2 United Kingdom 51
#3 France 50
#4 Canada 28
#5 Germany 18
#6 Denmark 6
#7 Austria 4
#8 Switzerland 3
#9 Spain 1

Patent filings per year

Chart showing SHARPLES SPECIALTY COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Jones Leo D 61
#2 Ayres Arthur U 15
#3 Jones Leo Diedrich 9
#4 Bath Wilmer H 8
#5 Clark Lee H 8
#6 Ayres Jr Eugene E 6
#7 James Edward M 4
#8 Ayres Eugene E Jr 4
#9 Bath Wilmer Hiestand 4
#10 Nathaniel Brewer 4

Latest patents

Publication Filing date Title
US2138476A Centrifugal separation
GB486163A Improvements in or relating to the treatment of distillery slop
US2126867A Acid treatment of petroleum white oil stock
GB481580A Improvements in or relating to the treatment of fatty oils
US2089123A Centrifugal separator
US2138468A Centrifugal separator
US2111508A Process of dewaxing
GB453630A Improvements in or relating to the treatment of tar
US2064799A Liquid impelling system
US2138467A Centrifugal process
US2082626A Process of recovering tar acids from crude tar
GB459503A Improvements in or relating to the prevention of cloggage in conduits for liquids containing suspended sludge
US2119132A Recovery of tar acids
GB445908A Improvements in or relating to the dewaxing of oil
GB448910A Improvements in or relating to methods of and means for continuously purifying liquids
US2053337A Method of dewaxing petroleum stock
US2126864A Centrifugal machine
US2106688A Centrifugal machine
US2067193A Method of dewaxing hydrocarbon oils
US2081692A Method of extracting tar acids from crude tar