by chemical means

Patents Grantslast 30 patents

  • Information Patent Grant

    Industrial wastewater recovery apparatus aiming at zero liquid disc...

    • Patent number 11,141,678
    • Issue date Oct 12, 2021
    • Dharmendra Meghanathan
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Air treatment agent dispenser with improved odour sensor functionality

    • Patent number 8,703,067
    • Issue date Apr 22, 2014
    • Reckitt & Colman (Overseas) Limited
    • Simon Woolley
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method for controlling boiler water foaming

    • Patent number 4,346,017
    • Issue date Aug 24, 1982
    • Calgon Corporation
    • Thomas E. Cornelius
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    3078236

    • Patent number 3,078,236
    • Issue date Feb 19, 1963
    • D21 - PAPER-MAKING PRODUCTION OF CELLULOSE
  • Information Patent Grant

    2875156

    • Patent number 2,875,156
    • Issue date Feb 24, 1959
    • F28 - HEAT EXCHANGE IN GENERAL
  • Information Patent Grant

    2846404

    • Patent number 2,846,404
    • Issue date Aug 5, 1958
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2727867

    • Patent number 2,727,867
    • Issue date Dec 20, 1955
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2717881

    • Patent number 2,717,881
    • Issue date Sep 13, 1955
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2701239

    • Patent number 2,701,239
    • Issue date Feb 1, 1955
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2695892

    • Patent number 2,695,892
    • Issue date Nov 30, 1954
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2671811

    • Patent number 2,671,811
    • Issue date Mar 9, 1954
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2647088

    • Patent number 2,647,088
    • Issue date Jul 28, 1953
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2630440

    • Patent number 2,630,440
    • Issue date Mar 3, 1953
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2626243

    • Patent number 2,626,243
    • Issue date Jan 20, 1953
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2612478

    • Patent number 2,612,478
    • Issue date Sep 30, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2609344

    • Patent number 2,609,344
    • Issue date Sep 2, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2596925

    • Patent number 2,596,925
    • Issue date May 13, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2588345

    • Patent number 2,588,345
    • Issue date Mar 11, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2588343

    • Patent number 2,588,343
    • Issue date Mar 11, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2588344

    • Patent number 2,588,344
    • Issue date Mar 11, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2583771

    • Patent number 2,583,771
    • Issue date Jan 29, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2580922

    • Patent number 2,580,922
    • Issue date Jan 1, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2580880

    • Patent number 2,580,880
    • Issue date Jan 1, 1952
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2575298

    • Patent number 2,575,298
    • Issue date Nov 13, 1951
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2575276

    • Patent number 2,575,276
    • Issue date Nov 13, 1951
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2534441

    • Patent number 2,534,441
    • Issue date Dec 19, 1950
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2528274

    • Patent number 2,528,274
    • Issue date Oct 31, 1950
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2528273

    • Patent number 2,528,273
    • Issue date Oct 31, 1950
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2493453

    • Patent number 2,493,453
    • Issue date Jan 3, 1950
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    2485378

    • Patent number 2,485,378
    • Issue date Oct 18, 1949
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL

Patents Applicationslast 30 patents