Patents by Inventor Achille Pontoglio

Achille Pontoglio 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 separating mixed monochlorotoluene isomers, a plant for carrying out the process, and the isomers separated in this manner
    Patent number: 4795839
    Abstract: The invention relates to a process for separating mixed monochlorotoluene isomers, which comprises a first stage of adsorption carried out by passing said mixture through at least one column filled with a zeolite, and a second stage of deadsorption from said zeolite carried out by passing two deadsorbents in succession in the vapor phase through the column.
    Type: Grant
    Filed: July 15, 1983
    Date of Patent: January 3, 1989
    Assignee: CAFFARO S.p.A. Societa per l'Industria Chimica ed Elettrochimica
    Inventors: Guido Niederjaufner, Achille Pontoglio, Giuseppe Storti, Massimo Morbidelli, Sergio Carra'
  • Chlorinated alkylaromatic based compounds and new liquid dielectrics
    Patent number: 4438027
    Abstract: New compounds of the formula: ##STR1## where n, x, y and z have value 1 or 2, their process of preparation and their use as dielectrics such as insulating fluids for transformers alone or in mixture with one or more products of general formula: ##STR2## where a varies from 2 to 4, b varies from 0 to 2 and R is an aliphatic hydrocarbon radical containing from 1 to 3 carbon atoms.
    Type: Grant
    Filed: September 30, 1982
    Date of Patent: March 20, 1984
    Assignee: PCUK Produits Chimiques Ugine Kuhlmann
    Inventors: Henri Mathais, Raymond Commandeur, Achille Pontoglio, Sergio Nebel