Patents by Inventor Claudia Maria Soares Ribeiro

Claudia Maria Soares Ribeiro 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).

  • Bacterial cleavage of only organic C-N bonds of carbonaceous materials to reduce nitrogen content
    Patent number: 6541240
    Abstract: A microbial process is provided for selective cleavage of only organic C—N bonds while leaving C—C bonds intact which may be used for reducing the nitrogen content of nitrogen-containing organic carbonaceous materials. Microorganisms of Pseudomonas ayucida have been found which have the ability of selective cleavage of organic C—N bonds. A particularly preferred microorganism is Pseudomonas ayucida strain ATCC No PTA-806. Other microorganisms useful in the cleavage of organic C—N bonds are Aneurinibacillus sp, Pseudomonas stutzeri, Yokenella sp. and Pseudomonas nitroreducens.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: April 1, 2003
    Assignee: Petroleo Brasileiro S.A.-Petrobras
    Inventors: John J. Kilbane, II, Claudia Maria Soares Ribeiro, Mônica Moreira Linhares
  • Microorganisms useful for cleavage of organic C-N bonds
    Patent number: 6204048
    Abstract: A mutant Pseudomonas ayucida strain No PTA-806 which is able to selectively cleave organic C—N bonds and reduce the nitrogen content of organic carbonaceous materials is described.
    Type: Grant
    Filed: November 30, 1999
    Date of Patent: March 20, 2001
    Assignee: Petroleo Brasileiro S.A-Petrobras
    Inventors: John J. Kilbane, II, Claudia Maria Soares Ribeiro, Mônica Moreira Linhares