TREA

Dema Engineering Company

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Organization

  • St. Louis, MO, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Turbine driven chemical dispenser
    • Patent number 11,426,745
    • Issue date Aug 30, 2022
    • Dema Engineering Company
    • James Michael Schlueter
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Grant

    Assembly for controlling eductive dispensing
    • Patent number 9,808,773
    • Issue date Nov 7, 2017
    • Dema Engineering Company
    • James M. Schlueter
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Multi-chemical dispensing device
    • Patent number 9,561,481
    • Issue date Feb 7, 2017
    • Dema Engineering Company
    • James Michael Schlueter
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Bottle insert
    • Patent number D682103
    • Issue date May 14, 2013
    • Dema Engineering Company
    • Frederick B. Jedlicka
    • D09 - Packages and containers for goods
  • Information Patent Grant

    Multi-chemical dispensing system
    • Patent number 7,331,488
    • Issue date Feb 19, 2008
    • Dema Engineering Company
    • Paul E. Naslund
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Backflow preventer
    • Patent number 6,648,003
    • Issue date Nov 18, 2003
    • Dema Engineering Company
    • Bruce Weber
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Dispensing apparatus with in-line actuator
    • Patent number 6,607,174
    • Issue date Aug 19, 2003
    • Dema Engineering Company
    • Bruce Weber
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Solid bowl feeder and equipment tray assembly
    • Patent number 6,213,353
    • Issue date Apr 10, 2001
    • Dema Engineering Company
    • Robert W. Haul
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Proportioner
    • Patent number 5,797,420
    • Issue date Aug 25, 1998
    • Dema Engineering Co.
    • Michael L. Nowicki
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Proportioner
    • Patent number 5,518,020
    • Issue date May 21, 1996
    • Dema Engineering Co.
    • Michael L. Nowicki
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Divertor valve
    • Patent number 5,141,016
    • Issue date Aug 25, 1992
    • Dema Engineering Co.
    • Michael L. Nowicki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Selector valve
    • Patent number 5,123,449
    • Issue date Jun 23, 1992
    • Dema Engineering Company
    • Michael L. Nowicki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Magnetically operated valve and timer assembly
    • Patent number 4,934,651
    • Issue date Jun 19, 1990
    • Dema Engineering Company
    • Michael L. Nowicki
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Vacuum actuated pump
    • Patent number 4,815,634
    • Issue date Mar 28, 1989
    • Dema Engineering Co.
    • Michael L. Nowicki
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Fluid pump assembly
    • Patent number 4,276,001
    • Issue date Jun 30, 1981
    • Dema Engineering Co.
    • Lambert Holmes
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

  • Information Patent Application

    MULTI-CHEMICAL DISPENSING DEVICE
    • Publication number 20150375183
    • Publication date Dec 31, 2015
    • DEMA Engineering Company
    • James Michael Schlueter
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    ASSEMBLY FOR CONTROLLING EDUCTIVE DISPENSING
    • Publication number 20150344289
    • Publication date Dec 3, 2015
    • DEMA Engineering Company
    • James M. Schlueter
    • B67 - OPENING, CLOSING OR CLEANING BOTTLES, JARS OR SIMILAR CONTAINERS LIQUID...
  • Information Patent Application

    REFILLABLE CHEMICAL RESERVOIR SYSTEM FOR TRIGGER SPRAYER
    • Publication number 20120255973
    • Publication date Oct 11, 2012
    • DEMA Engineering Company
    • James M. Schlueter
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Magnetic field sensor and dispenser control system
    • Publication number 20070205231
    • Publication date Sep 6, 2007
    • Dema Engineering Company
    • Robert W. Haul
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...
  • Information Patent Application

    Multi-chemical dispensing system
    • Publication number 20060102657
    • Publication date May 18, 2006
    • DEMA Engineering Company
    • Paul E. Naslund
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Trademarklast 30 trademarks

  • Information Trademark

    75545020 - CHEMASTER
    • Serial number 75545020
    • Filing date Aug 28, 1998
    • Dema Engineering Co.
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    75319131 - SELECT-O-MATIC
    • Serial number 75319131
    • Registration number 2195295
    • Filing date Jul 3, 1997
    • Dema Engineering Company
    • 7 - Machines and machine tools
  • Information Trademark

    74700350 - ULTRA-GAP
    • Serial number 74700350
    • Registration number 2031643
    • Filing date Jul 12, 1995
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74674900 - AQUA-MASTER
    • Serial number 74674900
    • Registration number 2050255
    • Filing date May 15, 1995
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74674849 - DIAL-A-BLEND
    • Serial number 74674849
    • Registration number 2020030
    • Filing date May 15, 1995
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74674850 - SURE-TIMER
    • Serial number 74674850
    • Registration number 1969941
    • Filing date May 15, 1995
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74527540 - DRAIN MASTER
    • Serial number 74527540
    • Registration number 1913010
    • Filing date May 9, 1994
    • Dema Engineering Company
    • 7 - Machines and machine tools
  • Information Trademark

    74482924 - MULTI-BLEND
    • Serial number 74482924
    • Registration number 1889700
    • Filing date Jan 25, 1994
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74462017 - BLEND CENTER
    • Serial number 74462017
    • Registration number 1895972
    • Filing date Nov 15, 1993
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    74461575 - BLEND SAFE
    • Serial number 74461575
    • Registration number 1888274
    • Filing date Nov 12, 1993
    • Dema Engineering Company
    • 9 - Scientific, nautical, surveying, photographic, cinematographic, optical, weighing, measuring, signalling, checking (supervision), life-saving and teaching apparatus and instruments
  • Information Trademark

    72244087 - DEMA
    • Serial number 72244087
    • Registration number 864702
    • Filing date Apr 21, 1966
    • DEMA ENGINEERING CO.
    • 6 - Common metals and their alloys