Patents by Inventor Emanuele Vignati

Emanuele Vignati 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).

  • Additives for oil recovery from reservoirs
    Patent number: 8709982
    Abstract: The invention relates to the use of quaternary polyamines having formula (I) for the recovery of oil from reservoirs formula (I), wherein n>=1 R1 represents H, CH3, CH2CH3, CnH2n+1 R2 represents H2CHOHCH2, CH2, CH2CH?CH2 R3 represents CH3, CH2CH3, CnH2n+1 R4 represents CH2, CH2CH?CH2 when R2 and R4 are allyl group, they can jointly form aliphatic cyclic structures, the ratio between the carbon atoms and nitrogen atoms (C/N) ranges from 2 to 30.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: April 29, 2014
    Assignee: ENI S.p.A.
    Inventors: Lucilla Del Gaudio, Thomas Paul Lockhart, Emanuele Vignati
  • ADDITIVES FOR OIL RECOVERY FROM RESERVOIRS
    Publication number: 20100120638
    Abstract: The invention relates to the use of quaternary polyamines having formula (I) for the recovery of oil from reservoirs formula (I), wherein n>=1 R1 represents H, CH3, CH2CH3, CnH2n+1 R2 represents H2CHOHCH2, CH2, CH2CH?CH2 R3 represents CH3, CH2CH3, CnH2n+1 R4 represents CH2, CH2CH?CH2 when R2 and R4 are allyl group, they can jointly form aliphatic cyclic structures, the ratio between the carbon atoms and nitrogen atoms (C/N) ranges from 2 to 30.
    Type: Application
    Filed: April 2, 2008
    Publication date: May 13, 2010
    Applicant: ENI S.P.A.
    Inventors: Lucilla Del Gaudio, Thomas Paul Lockhart, Emanuele Vignati