Patents by Inventor Claudio Uliana

Claudio Uliana 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 the preparation of asymmetrical membranes
    Patent number: 4188354
    Abstract: Asymmetric membranes for osmosis and ultrafiltration are prepared from fluorinated polymers which are dissolved in one or more solvents, cast on a plate, allowed to evaporate and precipitated with a nonsolvent. The polymeric material can variously be modified by chemical reactions, irradiations or both. By varying the chemical and physical parameters of the preparation run, a variety of membranes can be obtained which have the most varied performances and properties.
    Type: Grant
    Filed: July 29, 1977
    Date of Patent: February 12, 1980
    Assignee: Tecneco S.p.A.
    Inventors: Stelio Munari, Fernando Vigo, Gustavo Capannelli, Claudio Uliana, Aldo Bottino