Patents

1990 · 36

• WO1990015547A1 High pulsed voltage systems for extending the shelf life of pumpable food products

  WIPO · 27 Dec 1990 · indexed, no text held

• US4978458A Method of purifying water for drink with solar light and heat and apparatus used for the same method

  United States · 18 Dec 1990 · indexed, no text held

• WO1990014516A1 Improving fuel combustion efficiency

  WIPO · 29 Nov 1990 · indexed, no text held

• EP0399801A1 Improving fuel combustion efficiency

  European Patent Office · 28 Nov 1990 · indexed, no text held

• USRE33464E Method and apparatus for flame generation and utilization of the combustion products for heating, melting and refining

  United States · 27 Nov 1990 · indexed, no text held

• DE9010429U1 collector

  Germany · 22 Nov 1990 · indexed, no text held

• GB2231232A Imaging or measuring using an incoherent fibre optic bundle

  United Kingdom · 7 Nov 1990 · indexed, no text held

• US4968661A Oxidation catalyst amended by examiner

  United States · 6 Nov 1990 · indexed, no text held

• EP0391858A1 Apparatus for flue gas recirculation in oil and gas burners

  European Patent Office · 10 Oct 1990 · indexed, no text held

• US4962250A Process for the conversion of paraffins to olefins and/or aromatics and non-acidic zeolite catalyst therefor

  United States · 9 Oct 1990 · indexed, no text held

• WO1990011478A1 Improved solar collectors

  WIPO · 4 Oct 1990 · indexed, no text held

• US4959133A Field inversion electroblotting & electroelution

  United States · 25 Sep 1990 · indexed, no text held

• US4957431A Heating mantle with a porous radiation wall

  United States · Meng-Teck Eng · H. Kenneth Staffin · 18 Sep 1990

• US4957610A Generation of hydrogen and oxygen

  United States · 18 Sep 1990 · indexed, no text held

• DE9010407U1 Solar collector

  Germany · 13 Sep 1990 · indexed, no text held

• US4943125A Solar collector

  United States · John W. Laundre', Timothy D. Reynolds and 1 more · 24 Jul 1990

• US4940027A Marine engine with water cooled fuel line from remote tank

  United States · 10 Jul 1990 · indexed, no text held

• US4940933A Fiber optic arc monitor

  United States · 10 Jul 1990 · indexed, no text held

• AU598509B2 Method and apparatus for extending the shelf life of fluid food products

  Australia · 28 Jun 1990 · indexed, no text held

• US4934927A Perforated flame deflector

  United States · Edmund Swiatosz · 19 Jun 1990

• US4933151A Device for magnetically treating hydrocarbon fuels

  United States · 12 Jun 1990 · indexed, no text held

• US4930454A Steam generating system

  United States · 5 Jun 1990 · indexed, no text held

• US4928853A End aisle fluid mixing and dispensing system

  United States · 29 May 1990 · indexed, no text held

• US4929048A Fiber optic display

  United States · 29 May 1990 · indexed, no text held

• US4926765A Furnace blower with external gas recycling for the reduction of NOx

  United States · 22 May 1990 · indexed, no text held

• US4927621A Purification of anhydrous hydrogen chloride

  United States · 22 May 1990 · indexed, no text held

• US4925538A Method of electrolytic treatment of metals

  United States · 15 May 1990 · indexed, no text held

• US4921580A Solar water distiller

  United States · 1 May 1990 · indexed, no text held

• WO1990004142A1 Solar electric conversion unit and system

  WIPO · 19 Apr 1990 · indexed, no text held

• US4917454A Image scanner employing light pipes and an imaging sensor array

  United States · 17 Apr 1990 · indexed, no text held

• US4918031A Processes depending on plasma generation using a helical resonator

  United States · 17 Apr 1990 · indexed, no text held

• US4913130A Solar cooker assembly

  United States · 3 Apr 1990 · indexed, no text held

• DE3832494A1 Method and apparatus for feeding a gas burner with a mixture

  Germany · 29 Mar 1990 · indexed, no text held

• US4911817A Electrophoresis apparatus

  United States · 27 Mar 1990 · indexed, no text held

• EP0355229A1 Production of alcohols and olefins

  European Patent Office · 28 Feb 1990 · indexed, no text held

• US4893612A Radiant energy collector

  United States · 16 Jan 1990 · indexed, no text held