Patents by Inventor Klaus Klantschi

Klaus Klantschi has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Method for removing phosphates from aqueous solutions
    Patent number: 4080290
    Abstract: A method for the selective removal of phosphates from an aqueous solution wherein the solution containing phosphates is brought into contact with a water insoluble phosphate-adsorbing complex which consists of multivalent metal ions and organic ligands which in an arrangement suitable for forming a complex contain acid groups either alone or together with groups possessing similar coordination tendency.
    Type: Grant
    Filed: June 4, 1976
    Date of Patent: March 21, 1978
    Assignee: Chemische Fabrik Uetikon
    Inventors: Klaus Klantschi, Anton Aregger