Patents by Inventor Denise Maria Guimarães Freire

Denise Maria Guimarães Freire 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 producing esters and biolubricants, catalysed by fermented solid
    Patent number: 11866761
    Abstract: The present invention relates to a process for producing esters comprising reaction of methyl biodiesel or free fatty acids with a polyhydroxylated alcohol, in the presence of a biocatalyst, which is a fermented solid containing lipases of Rhizomucor miehei produced by culturing the microorganism on agricultural waste by solid state fermentation.
    Type: Grant
    Filed: October 11, 2018
    Date of Patent: January 9, 2024
    Assignees: PETRÓLEO BRASILEIRO S.A.—PETROBRAS, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO—UFRJ
    Inventors: Jose Andre Cavalcanti Da Silva, Guilherme Brandão Guerra, Denise Maria Guimarães Freire, Erika Cristina Gonçalves Aguieiras, Elisa D'avila Cavalcanti Oliveira, Jaqueline Greco Duarte, Kassia Leone Ignacio, Valéria Ferreira Soares, Priscila Rufino Da Silva
  • PROCESS FOR PRODUCING ESTERS AND BIOLUBRICANTS, CATALYSED BY FERMENTED SOLID
    Publication number: 20210189442
    Abstract: The present invention relates to a process for producing esters comprising reaction of methyl biodiesel or free fatty acids with a polyhydroxylated alcohol, in the presence of a biocatalyst, which is a fermented solid containing lipases of Rhizomucor miehei produced by culturing the microorganism on agricultural waste by solid state fermentation.
    Type: Application
    Filed: October 11, 2018
    Publication date: June 24, 2021
    Inventors: Jose Andre CAVALCANTI DA SILVA, Guilherme Brandão GUERRA, Denise Maria GUIMARÃES FREIRE, Erika Cristina GONÇALVES AGUIEIRAS, Elisa D'avila CAVALCANTI OLIVEIRA, Jaqueline GRECO DUARTE, Kassia Leone IGNACIO, Valéria Ferreira SOARES, Priscila Rufino DA SILVA
  • PROCESS FOR PRODUCTION OF LIPASES BY GENETIC MODIFICATION OF YEAST
    Publication number: 20110183400
    Abstract: The present invention relates to the construction of optimized synthetic lipase gene expression vectors for the high level expression of recombinant lipases in the yeast. The invention provides an enzymatic approach to the industrial processing of by-products resulting from biodiesel production.
    Type: Application
    Filed: December 17, 2010
    Publication date: July 28, 2011
    Applicant: PETROLEO BRASILEIRO S.A.- PETROBRAS
    Inventors: Aline Machado de Castro, Juliana Vaz Bevilaqua, Denise Maria Guimarães Freire, Fernando Araripe Goncalves Torres, Lídia Maria Melo Sant'anna, Melissa Limoeiro Estrada Gutarra, Caroline Alexandre Barbosa, Rodrigo Volcan Almeida, Reginaldo Ramos de Menezes, Aline Gomes Cunha
  • Production process and composition of an enzymatic preparation, and its use for the treatment of domestic and industrial effluents of high fat, protein and/or carbohydrate content
    Publication number: 20040055953
    Abstract: The present invention relates to a preparation process and composition of an enzymatic preparation for the treatment of liquid, paste and semi-solid effluents, both domestic and industrial, with high levels of fats, proteins and/or carbohydrates. In accordance with the present invention the enzymatic preparation proposed is produced by a fungus of the genus Penicillium restrictum isolated from agribusiness wastes, obtained at very reduced cost.
    Type: Application
    Filed: September 25, 2003
    Publication date: March 25, 2004
    Inventors: Magali Christe Cammarota, Denise Maria Guimaraes Freire, Geraldo Lippel Sant Anna, Jr., Carlos Russo, Denise Dias De Carvalho Freire, Leda Dos Reis Castilho