Patents
Patents for C02F 5 - Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents (8,632)
06/1976
06/29/1976US3966630 Use of polyquaternary ammonium methylene phosphonates in chelating or scale inhibition
06/22/1976US3965028 Bisulfite terminated oligomers to prevent scale
06/22/1976US3965027 Scale inhibition and corrosion inhibition
06/22/1976US3965003 Oxypropylated hydrocarbon phosphate
06/15/1976US3963636 Treatment of water or aqueous systems
06/15/1976US3963619 Apparatus for the prevention of scaling in desalination apparatus
06/08/1976US3962119 Non-foaming dispersing composition
06/08/1976US3962110 Process and composition for preventing scale build-up
06/01/1976US3960888 Toothpastes, mouthwashes, sequestering agent, stabilizer
05/1976
05/25/1976US3959168 Synergistic sequestering agent compositions
05/25/1976US3959167 Method and composition of inhibiting scale
05/25/1976US3958635 Method of inhibiting scale for high temperature steam wells
05/18/1976US3957160 Process for the prevention of precipitations in water or aqueous solutions
05/11/1976US3956164 Antiscaling agents
05/04/1976US3954761 Piperazine phosphonic acids
04/1976
04/27/1976US3953608 Cosmetic compositions for the skin containing a chitosan derivative
04/20/1976US3951827 Composition and method for removing insoluble scale deposits from surfaces
04/20/1976US3951794 Geothermal power method
04/20/1976US3951793 Method for controlling scale
04/06/1976US3948976 Partial esters of hydroxy polycarboxylic acids
04/06/1976US3948867 Process for polymerizing acrylic acid with inhibitor and retarder present and the use of resultant polyacrylic acids
04/06/1976US3948792 Corrosion and scale softening composition
03/1976
03/30/1976US3947327 Process and apparatus for recovering clean water from aqueous wastes
03/02/1976US3941772 Azacycloalkane-2,2-diphosphonic acids
02/1976
02/17/1976US3939226 Sequestrant, fire retardant
02/17/1976US3939100 Combination alkali metal pyrophosphate-alkaline earth metal pyrophosphate detergent builder
02/03/1976US3936380 Means to counteract a clogging of drain pipes
01/1976
01/20/1976US3933427 Phosphonoalkyldicarboxylic acid
01/13/1976US3932524 Process for the preparation of phosphine oxides and sulphides
01/13/1976US3932274 Method for eliminating metals from a solution containing a very slight amount of the metals
01/13/1976US3932224 Method of preventing scale from being deposited in case of producing fresh water from sea water
01/06/1976US3931038 Scale and corrosion inhibition for cooling water systems
1 ... 77 78 79 80 81 82 83 84 85 86 87