Patents by Inventor Arie Ben-Bassat

Arie Ben-Bassat 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).

  • Publication number: 20040248267
    Abstract: A biocatalytic method for preparing para-hydroxystyrene from para-hydroxycinnamic acid is described. The method uses an enzyme source having para-hydroxycinnamic acid decarboxylase activity to catalyze the decarboxylation of para-hydroxycinnamic acid in a biphasic reaction medium to produce para-hydroxystyrene, which is extracted into the organic phase of the biphasic reaction medium. The method results in a high yield of para-hydroxystyrene due to the decreased exposure of the enzyme source to the inhibitory product. The product is readily recovered from the extractant, or may be chemically derivatized directly in the extractant before recovery.
    Type: Application
    Filed: April 14, 2004
    Publication date: December 9, 2004
    Inventors: Arie Ben-Bassat, Sharon L. Haynie, David J. Lowe, Lisa L. Huang
  • Publication number: 20040229326
    Abstract: Methods are provided for the production and recovery of multifunctional aromatic compounds from a fermentation medium. Preferred multifunctional aromatic compounds include para-hydroxycinnamic acid (pHCA), cinnamic acid (CA), and para-hydroxystyrene (pHS). The multifunctional aromatic compounds may be produced in a biphasic growth medium comprising a fermentation medium having a specified volume of an extractant. The multifunctional aromatic compounds are extracted into the extractant and recovered by standard means.
    Type: Application
    Filed: April 14, 2004
    Publication date: November 18, 2004
    Inventors: Arie Ben-Bassat, David J. Lowe
  • Publication number: 20040018600
    Abstract: An in vivo method for the production of pHS via a recombinant host cell is disclosed. The host cell expresses at least one gene encoding a polypeptide having para-hydroxycinnamic acid decarboxylase activity in combination with either at least one gene encoding a polypeptide having tyrosine ammonia lyase activity or at least one gene encoding a polypeptide having phenylalanine ammonia lyase activity.
    Type: Application
    Filed: May 16, 2003
    Publication date: January 29, 2004
    Inventors: Arie Ben-Bassat, Wei Wei Qi, Fateme Sima Sariaslani, Xiao-Song Tang, Todd M. Vannelli
  • Patent number: 6677149
    Abstract: A method for preserving immobilized or unimmobilized microbial cells having nitrilase activity and for stabilizing the nitrilase activity of unimmobilized or immobilized microbial cells has been developed. Aqueous suspensions containing at least 100 mM bicarbonate, carbonate, or carbamate salts limit microbial contamination of the stored enzyme catalyst, as well as stabilize the desired nitrilase activity of the unimmobilized or immobilized cells. Microorganisms which are characterized by an nitrilase activity and are stabilized and preserved by this method include Acidovorax facilis 72-PF-15 (ATCC 55747), Acidovorax facilis 72-PF-17 (ATCC 55745), Acidovorax facilis 72W (ATCC 55746), and transformed microbial cells having nitrilase activity, the host cells transformed with Acidovorax facilis 72W nitrilase activity. Especially preferred is an embodiment using ammonium carbamate as the inorganic salt.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: January 13, 2004
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Arie Ben-Bassat, Robert D. Fallon
  • Publication number: 20030207322
    Abstract: Bacterial strains transformed with the pcu genes are useful for the production of para-hydroxybenzoate (PHBA). Applicant has provided the p-cresol utilizing (pcu) and tmoX gene sequences from Pseudomonas mendocina KR-1, the proteins encoded by these sequences, recombinant plasmids containing such sequences, and bacterial host cells containing such plasmids or integrated sequences. Method for the use of these materials to produce PHBA are also disclosed.
    Type: Application
    Filed: June 19, 2003
    Publication date: November 6, 2003
    Inventors: Arie Ben-Bassat, Monica Cattermole, Anthony A. Gatenby, Katharine J. Gibson, M. Isabel Ramos-Gonzalez, Juan L. Ramos, Sima Sariaslani
  • Publication number: 20030157595
    Abstract: A computer-based method and apparatus for the analysis specification and support of work processes. The system is designed to support multiple interdependent decisions, at least some of which require collaboration among multiple participants (116). Work processes are modeled using an application framework (99) used to develop abstract, decision (100) process models. The decision (100) process models are used as a pattern to instantiate concrete process models that incorporate the work defined by the abstract process. The process model is then used to instantiate project models that incorporate the required work from the process. The project models are used to direct and guide the behavior of the participants (116) in the work process.
    Type: Application
    Filed: June 3, 1999
    Publication date: August 21, 2003
    Inventors: MARK AARON EMALFARB, IRINA VLADIMIROVNA SOLOVJEVA, ARIE BEN-BASSAT, RICHARD P. BURLINGAME, VLADIMIR MIKHAYLOVICH CHERNOGLAZOV, OLEG NICOLAEVICH OCOUNEV, PHILIP T. OLSON, ARKADY PANTELEIMONOVICH SINITSYN
  • Publication number: 20030158397
    Abstract: This invention relates to the isolation of a novel tonB operon from Pseudomonas putida. These genes are useful to render the cells more sensitive to antibiotics, toluene, pHBA, aromatic compounds, parabenes, and aromatic amino acids after inactivation with specific mutant allels or more tolerant to these compounds after overexpression with appropriate expression vector. These findings are important in the field of medicine and biotechnology and biocatalysis. In addition a screen to identify pHBA tolerant genes is provided and strains with significant tolerance to pHBA were identified. These strains are important for pHBA production.
    Type: Application
    Filed: October 1, 2001
    Publication date: August 21, 2003
    Inventors: Juan Luis Ramos, Arie Ben-Bassat, Estrella Duque, Patricia Godoy, Marie Isable Ramos-Gonzalez
  • Patent number: 6586229
    Abstract: Bacterial strains transformed with the pcu genes are useful for the production of para-hydroxybenzoate (PHBA). Applicant has provided the p-cresol utilizing (pcu) and tmoX gene sequences from Pseudomonas mendocina KR-1, the proteins encoded by these sequences, recombinant plasmids containing such sequences, and bacterial host cells containing such plasmids or integrated sequences. Method for the use of these materials to produce PHBA are also disclosed.
    Type: Grant
    Filed: June 1, 2000
    Date of Patent: July 1, 2003
    Assignee: North Carolina State University
    Inventors: Arie Ben-Bassat, Monica Cattermole, Anthony A. Gatenby, Katharine J. Gibson, M. Isabel Ramos-Gonzalez, Juan Ramos, Sima Sariaslani
  • Publication number: 20020151003
    Abstract: Bacterial strains transformed with the pcu genes are useful for the production of para-hydroxybenzoate (PHBA). Applicant has provided the p-cresol utilizing (pcu) and tmox gene sequences from Pseudomonas mendocina KR-1, the proteins encoded by these sequences, recombinant plasmids containing such sequences, and bacterial host cells containing such plasmids or integrated sequences. Method for the use of these materials to produce PHBA are also disclosed.
    Type: Application
    Filed: November 28, 2001
    Publication date: October 17, 2002
    Inventors: Arie Ben-Bassat, Monica Cattermole, Anthony A. Gatenby, Katharine J. Gibson, M. Isabel Ramos-Gonzalez, Juan L. Ramos, Sima Sariaslani
  • Patent number: 6429002
    Abstract: Acetobacter strains are identified as stable under agitated culture conditions and exhibit substantially reduced gluconic and keto-gluconic acids production. A method and media for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose product is produced using the methods and conditions claimed, and may be converted to of a sheet characterized by substantial resistance to densification and great tensile strength when produced by sheet forming means. Preferred Acetobacter strains are ATCC Nos. 53264, 53263 and 53524.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: August 6, 2002
    Assignee: CP Kelco U.S., Inc.
    Inventors: Arie Ben-Bassat, Robert Bruner, Sharon Shoemaker, Yehoshua Aloni, Harry Wong, Donald C. Johnson, Amar N. Neogi
  • Patent number: 6368804
    Abstract: A method for preserving immobilized or unimmobilized microbial cells having nitrilase activity and for stabilizing the nitrilase activity of unimmobilized or immobilized microbial cells has been developed. The unimmobilized or immobilized microbial cells are stored in an aqueous solution containing from about 0.10 M to the saturation concentration of an inorganic salt of bicarbonate or carbonate, including ammonium, sodium and potassium salts of bicarbonate or carbonate. Aqueous suspensions containing at least 100 mM bicarbonate or carbonate limit microbial contamination of the stored enzyme catalyst, as well as stabilize the desired nitrilase activity of the uninmmobilized or immobilized cells. Microorganisms which are characterized by an nitrilase activity and are stabilized and preserved by this method include Acidovorax facilis 72-PF-15 (ATCC 55747), Acidovorax facilis 72-PF-17 (ATCC 55745), Acidovorax facilis 72W (ATCC 55746), and transformed microbial cells having nitrilase activity, preferably E.
    Type: Grant
    Filed: July 12, 2000
    Date of Patent: April 9, 2002
    Assignee: E. I. du Pont de Nemours & Company
    Inventors: Arie Ben-Bassat, Robert Dicosimo, Robert Donald Fallon
  • Publication number: 20020019042
    Abstract: A method for preserving immobilized or unimmobilized microbial cells having nitrilase activity and for stabilizing the nitrilase activity of unimmobilized or immobilized microbial cells has been developed. Aqueous suspensions containing at least 100 mM bicarbonate, carbonate, or carbamate salts limit microbial contamination of the stored enzyme catalyst, as well as stabilize the desired nitrilase activity of the unimmobilized or immobilized cells. Microorganisms which are characterized by an nitrilase activity and are stabilized and preserved by this method include Acidovorax facilis 72-PF-15 (ATCC 55747), Acidovorax facilis 72-PF-17 (ATCC 55745), Acidovorax facilis 72W (ATCC 55746), and transformed microbial cells having nitrilase activity, the host cells transformed with Acidovorax facilis 72W nitrilase activity. Especially preferred is an embodiment using ammonium carbamate as the inorganic salt.
    Type: Application
    Filed: May 14, 2001
    Publication date: February 14, 2002
    Inventors: Robert Dicosimo, Arie Ben-Bassat, Robert D. Fallon
  • Patent number: 6329192
    Abstract: A method and media for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose product is produced using the methods and conditions claimed, and may be converted to of a sheet characterized by substantial resistance to densification and great tensile strength when produced by sheet forming means. Acetobacter strains are identified as stable under agitated culture conditions and exhibit substantially reduced gluconic and keto-gluconic acids production.
    Type: Grant
    Filed: June 1, 1993
    Date of Patent: December 11, 2001
    Assignee: CP Kelco U.S., Inc.
    Inventors: Arie Ben-Bassat, Robert Bruner, Sharon Shoemaker, Yehoshua Aloni, Harry Wong, Donald C. Johnson, Amar N. Neogi
  • Patent number: 6251646
    Abstract: A method for the stabilization of nitrilase activity of unimmobilized or immobilized microbial cells has been developed. The unimmobilized or immobilized microbial cells are stored in an aqueous solution containing from 0.100 M to the saturation concentration of an inorganic salt of bicarbonate or carbonate, including ammonium, sodium and potassium salts of bicarbonate or carbonate. Aqueous suspensions containing at least 100 mM bicarbonate or carbonate limit microbial contamination of the stored enzyme catalyst, as well as stabilize the desired nitrilase activity of the unimmobilized or immobilized cells. Microorganisms which are characterized by an nitrilase activity and are stabilized and preserved by this method include Acidovorax facilis 72-PF-15 (ATCC 55747), Acidovorax facilis 72-PF-17 (ATCC 55745), and Acidovorax facilis 72W (ATCC 55746).
    Type: Grant
    Filed: July 12, 1999
    Date of Patent: June 26, 2001
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Robert Dicosimo, Arie Ben-Bassat, Robert D. Fallon
  • Patent number: 6015707
    Abstract: The subject invention relates to novel compositions of neutral and/or alkaline cellulase and methods for obtaining neutral and/or alkaline cellulase compositions from Chrysosporium cultures, in particular Chrysosporium lucknowense. This invention also provides mutants and methods of generating mutants of Chrysosporium capable of producing neutral and/or alkaline cellulase. This invention also relates to the genes encoding the enzymes comprising the neutral and/or alkaline cellulase composition. In addition, this invention provides methods of culturing Chrysosporium to produce neutral and/or alkaline cellulases. The neutral and/or alkaline cellulase compositions of the subject invention can be used in a variety of processes including stone washing of clothing, detergent processes, deinking and biobleaching of paper & pulp and treatment of waste streams.
    Type: Grant
    Filed: June 29, 1998
    Date of Patent: January 18, 2000
    Assignee: Mark A. Emalfarb
    Inventors: Mark Aaron Emalfarb, Arie Ben-Bassat, Arkady Panteleimonovich Sinitsyn
  • Patent number: 5871978
    Abstract: A method and media are provided for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose product is produced using the methods and conditions claimed, and may be in the form of a sheet characterized by substantial resistance to densification and great tensile strength when produced by sheet forming means. Strains of Acetobacter that are stable under agitated culture conditions and that exhibit substantially reduced gluconic and keto-gluconic acids production are described.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: February 16, 1999
    Inventors: Arie Ben-Bassat, Robert Bruner, Sharon Shoemaker, Yehoshua Aloni, Harry Wong, Donald C. Johnson, Amar N. Neogi
  • Patent number: 5821109
    Abstract: A method and media for producing bacterial cellulose under agitated culture conditions resulting in sustained production over an average of 70 hours of at least 0.1 g/liter per hour are achieved. A unique reticulated cellulose II product is produced using the methods and conditions claimed, and may be in the form of a sheet characterized by resistance to densification and great tensile strength when produced by sheet forming means. Also strains of Acetobacter that are stable under agitated culture conditions and that exhibit substantially reduced gluconic and keto-gluconic acids production are described.
    Type: Grant
    Filed: May 17, 1995
    Date of Patent: October 13, 1998
    Assignee: Monsanto Life Sciences Co.
    Inventors: Arie Ben-Bassat, Robert Bruner, Sharon Shoemaker, Yehoshua Aloni, Harry Wong, Donald C. Johnson, Amar N. Neogi
  • Patent number: 5811381
    Abstract: The subject invention relates to novel compositions of neutral and/or alkaline cellulase and methods for obtaining neutral and/or alkaline cellulase compositions from Chrysosporium cultures, in particular Chrysosporium lucknowense. This invention also provides mutants and methods of generating mutants of Chrysosporium capable of producing neutral and/or alkaline cellulose. This invention also relates to the genes encoding the enzymes comprising the neutral and/or alkaline cellulase composition. In addition, this invention provides methods of culturing Chrysosporium to produce neutral and/or alkaline cellulases. The neutral and/or alkaline cellulase compositions of the subject invention can be used in a variety of processes including stone washing of clothing, detergent processes, deinking and biobleaching of paper & pulp and treatment of waste streams.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: September 22, 1998
    Assignee: Mark A. Emalfarb
    Inventors: Mark Aaron Emalfarb, Arie Ben-Bassat, Richard P. Burlingame, Vladimir Mikhaylovich Chernoglazov, Oleg Nicolaevich Okounev, Philip T. Olson, Arkady Panteleimonovich Sinitsyn, Irina Vladimirovna Solovjeva
  • Patent number: 5759828
    Abstract: The present invention provides the nucleotide sequences of Acetobacter operons, cdg operons encoding genes for the biosynthesis and degradation of cyclic diguanosine monophosphate (c-di-GMP). Specifically, the nucleotide sequences and deduced amino acid sequences of 3 phosphodiesterases isozymes, 3 diguanylate cyclase isozymes, and 2 polypeptides of unidentified function are provided. Also provided for are various strains of microorganisms, including Acetobacter cells genetically manipulated so as to produce elevated and/or reduced levels of one or more cdg operon encoded proteins.
    Type: Grant
    Filed: September 20, 1994
    Date of Patent: June 2, 1998
    Assignee: Weyerhaeuser
    Inventors: Rony Tal, David H. Gelfand, Roger D. Calhoon, Arie Ben-Bassat, Moshe Benziman, Hing Cheung Wong
  • Patent number: 5554520
    Abstract: Novel plasmids comprising genes which code for the alcohol dehydrogenase and pyruvate decarboxylase are have been transformed with genes coding for alcohol dehydrogenase and pyruvate. By virtue of their transformation with these genes, the recombinant hosts are capable of producing significant amounts of ethanol as a fermentation product. Also disclosed are methods for increasing the growth of recombinant hosts and methods for reducing the accumulation of undesirable metabolic products in the growth medium of these hosts. Also disclosed are recombinant host capable of producing significant amounts of ethanol as a fermentation product of oligosaccharides and plasmids comprising genes encoding polysaccharases, in addition to the genes described above which code for the alcohol dehydrogenase and pyruvate decarboxylase. Further, methods are described for producing ethanol from oligomeric feedstock using the recombinant hosts described above.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: September 10, 1996
    Assignee: BioEnergy International, L.C.
    Inventors: David E. Fowler, Philip G. Horton, Arie Ben-Bassat