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WILFLEY & SONS INC A

Overview
  • Total Patents
    143
  • GoodIP Patent Rank
    233,716
About

WILFLEY & SONS INC A has a total of 143 patent applications. Its first patent ever was published in 1928. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and machines are SULZER PUMPEN AG, GIESSEREI UND MASCHINENFABRIK and ZULTSER MENEDZHMENT AG.

Patent filings per year

Chart showing WILFLEY & SONS INC As patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Wilfley Elmer R 21
#2 Zagar Irvin F 16
#3 Wilfley George M 11
#4 Studebaker James B 10
#5 Wilfley George Merritt 9
#6 Weber Richard B 9
#7 Geer William E 9
#8 Whittier John D 9
#9 Wilfley George Michael 8
#10 Wilfley G Michael 5

Latest patents

Publication Filing date Title
US2015354583A1 Centrifugal pump with governor actuated seal
US6443854B1 Anodized aluminum golf club head and method of manufacturing same
US6224322B1 Seal assembly for centrifugal pumps with barrier ring
US5816784A Electromagnetic actuator mechanism for centrifugal pump
US5667356A Acid/slurry governor seal assembly for centrifugal pumps
US5580215A Centrifugal pump with electromagnetic actuator mechanism
US5261786A Actuator mechanism for pump sealing apparatus
US4915579A Pump sealing apparatus
US4793925A Hydrocyclone construction
US4629591A Gas diffuser and accompanying piping system
US4634344A Multi-element centrifugal pump impellers with protective covering against corrosion and/or abrasion
US4521349A Fluid diffuser for gases and liquids
US4451155A Mixing device
US3704960A Vertical centrifugal pump
US3652180A Centrifugal pump and seal means therefore
US3656861A Centrifugal pump with mating case plate volute halves and constant section impeller
US3620642A Centrifugal pump
US3515497A Centrifugal pump having hydraulic seal means
FR1545550A Centrifugal pump and device ensuring its tightness
US3402671A Centrifugal pump and sealing means therefor