Patents by Inventor Raffaella Monga

Raffaella Monga 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 separation of hollow glass microspheres from muds containing them
    Patent number: 7004333
    Abstract: Process for recovering at least 70% of hollow glass microspheres having an average diameter, according to the ASTM D1214-1989, ranging from 5 to 200 ?m contained in a mixture of drilling mud and cuttings which comprises: a) screening, if necessary, the mixture through one or more 5 to 20 mesh sieves; b) feeding the screened mixture to one or more cyclones and/or hydrocyclones arranged in series, each of which is fed with a volume flow-rate from 1.5 to 10 times higher than the maximum nominal operating value.
    Type: Grant
    Filed: November 13, 2001
    Date of Patent: February 28, 2006
    Assignees: ENI S.p.A., ENITECNOLOGIE S.p.A.
    Inventors: Armando Marcotullio, Raffaella Monga, Giuseppe Belmonte, Angelo Calderoni, Giovanni Ferrari
  • Process for the separation of hollow glass microspheres from muds containing them
    Publication number: 20040089591
    Abstract: Process for recovering at least 70% of hollow glass microspheres having an average diameter, according to the ASTM D1214-1989, ranging from 5 to 200 &mgr;m contained in a mixture of drilling mud and cuttings which comprises: a) screening, if necessary, the mixture through one or more 5 to 20 mesh sieves; b) feeding the screened mixture to one or more cyclones and/or hydrocyclones arranged in series, each of which is fed with a volume flow-rate from 1.5 to 10 times higher than the maximum nominal operating value.
    Type: Application
    Filed: November 20, 2003
    Publication date: May 13, 2004
    Inventors: Armando Marcotullio, Raffaella Monga, Giuseppe Belmonte, Angelo Calderoni, Giovanni Ferrari
  • Alkylene oxide modified poly(2,6-dimethyl-p-oxyphenylene)
    Patent number: 5019631
    Abstract: A modified poly(2,6-dimethyl-p-oxyphenylene) with a glass transition temperature in the range of 180.degree.-220.degree. C. is described in which on the average between 10 and 60% of the macromolecules carry:a) an ##STR1## unit; or b) an ##STR2## unit. Said modified poly(2,6-dimethyl-p-oxyphenylene) is useful as a material in the preparation of flat membranes, in particular asymmetric membrane, for gas separation.
    Type: Grant
    Filed: August 21, 1989
    Date of Patent: May 28, 1991
    Assignee: Eniricerche S.p.A.
    Inventors: Otello Farias, Alberto Gandini, Raffaella Monga, Arnaldo Roggero, Raffaello Sisto, Claudio Valentini