Patents by Inventor Asta Siksniute

Asta Siksniute 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).

  • Nucleic acid purification
    Patent number: 7811807
    Abstract: A process for purifying plasmid DNA from a nucleic acid containing sample comprising plasmid DNA and contaminants, which process comprises a step of contaminant removal, comprising: (a) treating the sample to form a nucleic acid solution having a concentration of monovalent cations; (b) contacting the nucleic acid solution with an ultrafiltration membrane having a molecular weight exclusion limit of at least 30 kDa under conditions in which substantially no gel-layer forms and in which the concentration of monovalent cations is sufficiently high for a time sufficient to remove substantially all RNA and form a retentate containing plasmid DNA; and (c) collecting the retentate.
    Type: Grant
    Filed: March 27, 2002
    Date of Patent: October 12, 2010
    Assignee: Fermentas UAB
    Inventors: Rimantas Kvederas, Asta Siksniute, Alyimantas Markauskas
  • Nucleic acid purification
    Publication number: 20030109696
    Abstract: A process for purifying plasmid DNA from a nucleic acid containing sample comprising plasmid DNA and contaminants, which process comprises a step of contaminant removal, comprising:
    Type: Application
    Filed: March 27, 2002
    Publication date: June 12, 2003
    Applicant: Fermentas AB
    Inventors: Rimantas Kvederas, Asta Siksniute, Algimantas Markauskas