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IMPROVED MACHINERY INC

Overview
  • Total Patents
    477
About

IMPROVED MACHINERY INC has a total of 477 patent applications. Its first patent ever was published in 1952. It filed its patents most often in United States, Canada and Finland. Its main competitors in its focus markets textiles and paper, chemical engineering and machines are MADISON FILTER 981 LTD, WALKER FILTRATION LTD and SALOMANS OY.

Patent filings per year

Chart showing IMPROVED MACHINERY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rich John P 67
#2 Luthi Oscar 57
#3 Carlsmith Lawrence A 50
#4 Luthi O 28
#5 Carlsmith L 24
#6 Rich J 18
#7 Oscar Luthi 13
#8 Burling Elmer R 10
#9 Allard Harrie M 10
#10 Putnam Neil F 9

Latest patents

Publication Filing date Title
FI790866A Trumma with ring form gallery structure saerskilt for towing av enpaper
FI771237A Anordning foer soenderavdelning och blaosning av pappersmassa
CA1012758A Drum including annular grid structure
US3870635A Apparatus for clarifying an influent water
US3881985A Continuous digester with strainer valve cycling
US3869236A Molding apparatus including article cooling
CA1011888A Apparatus and methods for clarifying an influent water
US3859213A Filtering apparatus and methods
US3815926A Low friction sealing means
CA1014073A Contrarotating drum filter with fluid biased baffles
US3824062A Track-type molding apparatus and carriage means therefor
US3846299A Clarifying apparatus and method for influent waters
US3847528A Clamping force applying means for molding machines
US3822867A Control apparatus and methods for molding machinery
US3807927A Apparatus for cooling by repeated application of cooling fluid
US3781957A Drum including annular grid structure
US3775234A Grid structure with waved strips having apexes with enlarged sections formed therein
US3814664A Gaseous reaction apparatus including a peripheral gas receiving chamber
US3785577A Apparatus for the gaseous reaction of material
US3772144A Apparatus and method for thickening and washing suspensions containing fibrous material