Composite materials, their preparation and articles made therefrom
US4627863A
Filter for air handling equipment
US4569756A
Water treatment system
US4664812A
Liquid filtration apparatus and process
US4505823A
Filtering device for treating contaminated aqueous solutions
US4643182A
Disposable protective mask
US4402364A
Fire extinguishing method
US4454044A
Water treatment process
US4344775A
Method for separating gases liquid droplets and/or solid particles from gases or vapors
US4372913A
Polymerization, and corrosion resistance, enhancement by acid addition salts of methacrylic acid and a 2-mono (lower) alkylaminoethyl methacrylate or polymers of these salts
US4344846A
Filtration using expanded styrene-polymer and polyolefin micro-bits
US4427157A
Preparation of styrene-polymer and polyolefin micro-bits
US4304873A
Preparation of expanded flexible polyurethane foam micro-bits
US4369116A
Liquid filtration method
US4293378A
Enhanced wet strength filter mats to separate particulates from fluids and/or coalesce entrained droplets from gases
US4286977A
High efficiency particulate air filter
IL57710D0
Mats for adsorption and filtration of liquids
US4239516A
Porous media to separate gases liquid droplets and/or solid particles from gases or vapors and coalesce entrained droplets
IL56637D0
Porous media to separate gases or vapors and coalesce entrained droplets
