Patents by Inventor Giampiero Longobardi

Giampiero Longobardi 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).

  • Process and an equipment for producing crystalline citric acid from solutions of alkaline citrates
    Patent number: 3968017
    Abstract: A process for producing citric acid in crystalline form from solutions of alkaline citrates, comprising sequentially the stages of:A. partially converting by electrodialysis the alkaline citrate to citric acid;B. concentrating by hot fractional crystallization the solution of citric acid and alkaline citrate as obtained in (a);C. separating by centrifugation the crystalline citric acid from the concentrated solution coming from (b);D. re-cycling the mother liquors of crystallization residual from the separating operation (c) part to the electrodialysis stage (a) and part to the stage of crystallization (b).
    Type: Grant
    Filed: February 6, 1975
    Date of Patent: July 6, 1976
    Assignees: Compagnia Tecnica Industrie Petroli S.p.A., Liquichimica S.p.A.
    Inventors: Pierluigi Canata, Giampiero Longobardi
  • Air lift fermentors
    Patent number: 3963581
    Abstract: An air lift fermentor comprising in combination a hollow cylindrical body, vertically located and subdivided into three zones by a pair of diaphragms parallel to the axis of said cylindrical body, the central zone of which is destined to fermentation of the liquor, and the two lateral zones serve for recirculating the liquor itself, after its passage through a heat exchanger and an air distributor, both located near the bottom of said cylindrical body.
    Type: Grant
    Filed: February 24, 1975
    Date of Patent: June 15, 1976
    Assignee: Compagnia Tecnica Industrie Petrolie S.p.A.
    Inventors: Francesco Giacobbe, Giampiero Longobardi