Patents by Inventor Angelo Massacci

Angelo Massacci 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 for the preparation of incoagulable blood by means of proteolytic enzymes and protein concentrate prepared therefrom
    Patent number: 4386161
    Abstract: Proteolytic enzymes, particularly papain, are used for rendering whole blood incoagulable. The treatment is preferably carried out at a pH of 7.2 with a ratio between enzyme and substrate, for instance, 1:200, and a volume ratio of 1:10. In the case of papain, a 1.6% solution is advantageously used. The incoagulable blood may be used to prepare a protein concentrate by precipitating the proteins with an agent, for instance, acetone or ethanol, preferably at 0.degree. C. in the presence of hydrochloric acid.
    Type: Grant
    Filed: April 20, 1981
    Date of Patent: May 31, 1983
    Assignee: Consiglio Nazionale Delle Ricerche
    Inventors: Giovanni B. Quaglia, Angelo Massacci