Patents by Inventor Marco Valetti

Marco Valetti 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).

  • Patent number: 10632144
    Abstract: Disclosed is a low molecular weight (1000-5000 daltons) chondroitin sulfate (CS) produced by chemical sulfation of a non-sulfated chondroitin backbone (K4 capsular polysaccharide) obtained with biotechnology techniques. The CS described is substantially monosulfated, mainly at the 6-position, with very little sulfation at the 4-position, and with a mono/disulfated disaccharide ratio and charge density similar to those of natural CS. Said biotechnological chondroitin sulfate (CS) is useful in the treatment and prevention of osteoarthritis and in acute and chronic inflammatory processes.
    Type: Grant
    Filed: September 27, 2018
    Date of Patent: April 28, 2020
    Assignee: Gnosis S.p.A.
    Inventors: Paola Bazza, Davide Bianchi, Niccolo Miraglia, Marco Valetti, Ermanno Valoti, Nicola Angelo Maria Volpi
  • Publication number: 20190231810
    Abstract: Disclosed is a low molecular weight (1000-5000 daltons) chondroitin sulfate (CS) produced by chemical sulfation of a non-sulfated chondroitin backbone (K4 capsular polysaccharide) obtained with biotechnology techniques. The CS described is substantially monosulfated, mainly at the 6-position, with very little sulfation at the 4-position, and with a mono/disulfated disaccharide ratio and charge density similar to those of natural CS. Said biotechnological chondroitin sulfate (CS) is useful in the treatment and prevention of osteoarthritis and in acute and chronic inflammatory processes.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 1, 2019
    Applicant: Gnosis S.p.A.
    Inventors: Paola Bazza, Davide Bianchi, Niccolo Miraglia, Marco Valetti, Ermanno Valoti, Nicola Angelo Maria Volpi
  • Patent number: 9908947
    Abstract: The present invention discloses a process for the production of chondroitin sulphate with an average molecular weight (Mw) of 10-30 kDa by chemical sulphation starting from an unsulphated chondroitin backbone, obtained in turn by acid hydrolysis of capsular polysaccharide K4 made directly from E. coli strain O5:K4:H4, or directly produced from a genetically modified strain of E. coli. Sulphation of the N-acetyl-D-galactosamine residue at position 4 or 6 takes place simultaneously in the same polysaccharide chain, simulating the sulphation pattern observed in natural chondroitin sulphate, unlike the sulphation obtained with the synthesis methods described to date.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: March 6, 2018
    Assignee: Gnosis S.p.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza, Niccolo Miraglia, Ermanno Valoti
  • Patent number: 9834579
    Abstract: Disclosed are two novel crystalline forms of S-acetyl glutathione (SAG) called Form A and Form B, obtained by crystallization of SAG from mixtures of water-acetone, water-ethanol or water acetone under controlled conditions. Forms A and B can be advantageously used as ingredients of pharmaceutical or nutraceutical formulations.
    Type: Grant
    Filed: November 6, 2014
    Date of Patent: December 5, 2017
    Assignee: Gnosis S.p.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza
  • Patent number: 9718947
    Abstract: A process for the preparation of a chondroitin sulphate salt with an average molecular weight (Mw) of 10-30 kDa via chemical sulphation of an unsulphated chondroitin backbone is provided. The unsulphated chondroitin can be obtained by acid hydrolysis of a capsular polysaccharide K4 made directly from E. coli strain O5:K4:H4 or directly produced from a genetically modified strain of E. coli. Sulphation of the N-acetyl-D-galactosamine residue at position 4 or 6 takes place simultaneously in the same polysaccharide chain, simulating the sulphation pattern observed in natural chondroitin sulphate.
    Type: Grant
    Filed: October 11, 2011
    Date of Patent: August 1, 2017
    Assignee: Gnosis S.p.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza, Nicolò Miraglia, Ermanno Valoti
  • Publication number: 20160272677
    Abstract: Disclosed are two novel crystalline forms of S-acetyl glutathione (SAG) called Form A and Form B, obtained by crystallisation of SAG from mixtures of water-acetone, water-ethanol or water acetone under controlled conditions. Forms A and B can be advantageously used as ingredients of pharmaceutical or nutraceutical formulations.
    Type: Application
    Filed: November 6, 2014
    Publication date: September 22, 2016
    Applicant: Gnosis S.p.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza
  • Publication number: 20160108139
    Abstract: The present invention discloses a process for the production of chondroitin sulphate with an average molecular weight (Mw) of 10-30 kDa by chemical sulphation starting from an unsulphated chondroitin backbone, obtained in turn by acid hydrolysis of capsular polysaccharide K4 made directly from E. coli strain O5:K4:H4, or directly produced from a genetically modified strain of E. coli. Sulphation of the N-acetyl-D-galactosamine residue at position 4 or 6 takes place simultaneously in the same polysaccharide chain, simulating the sulphation pattern observed in natural chondroitin sulphate, unlike the sulphation obtained with the synthesis methods described to date.
    Type: Application
    Filed: December 21, 2015
    Publication date: April 21, 2016
    Applicant: Gnosis S.p.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza, Niccolo Miraglia, Ermanno Valoti
  • Publication number: 20160074429
    Abstract: Disclosed is a low-molecular-weight (1000-5000 daltons) chondroitin sulphate (CS) produced by chemical sulphation and subsequent depolymerisation of a non-sulphated chondroitin backbone obtained with biotechnology techniques. The CS described is substantially monosulphated, mainly at the 6-position, with very little sulphation at the 4-position, and with a mono/disulphated disaccharide ratio and charge density similar to those of natural CS. Said biotechnological chondroitin 6-sulphate (C6S) is useful in the treatment and prevention of osteoarthritis and in acute and chronic inflammatory processes.
    Type: Application
    Filed: November 20, 2015
    Publication date: March 17, 2016
    Applicant: GNOSIS S.P.A.
    Inventors: Niccolo Miraglia, Davide Bianchi, Ermanno Valoti, Antonella Trentin, Antonio Trilli, Immacolata Busiello, Marco Agostinetto, Paola Bazza, Marco Valetti
  • Publication number: 20150152198
    Abstract: Disclosed is a low-molecular-weight (1000-5000 daltons) chondroitin sulphate (CS) produced by chemical sulphation and subsequent depolymerisation of a non-sulphated chondroitin backbone obtained with biotechnology techniques. The CS described is substantially monosulphated, mainly at the 6-position, with very little sulphation at the 4-position, and with a mono/disulphated disaccharide ratio and charge density similar to those of natural CS. Said biotechnological chondroitin 6-sulphate (C6S) is useful in the treatment and prevention of osteoarthritis and in acute and chronic inflammatory processes.
    Type: Application
    Filed: May 22, 2013
    Publication date: June 4, 2015
    Inventors: Niccolo Miraglia, Davide Bianchi, Ermanno Valoti, Antonella Trentin, Antonio Trilli, Immacolata Busiello, Marco Agostinetto, Paola Bazza, Marco Valetti
  • Publication number: 20140315854
    Abstract: The present invention discloses a process for the production of chondroitin sulphate with an average molecular weight (Mw) of 10-30 kDa by chemical sulphation starting from an unsulphated chondroitin backbone, obtained in turn by acid hydrolysis of capsular polysaccharide K4 made directly from E. coli strain O5:K4:H4, or directly produced from a genetically modified strain of E. coli. Sulphation of the N-acetyl-D-galactosamine residue at position 4 or 6 takes place simultaneously in the same polysaccharide chain, simulating the sulphation pattern observed in natural chondroitin sulphate, unlike the sulphation obtained with the synthesis methods described to date.
    Type: Application
    Filed: May 10, 2012
    Publication date: October 23, 2014
    Applicant: GNOSIS S.P.A.
    Inventors: Davide Bianchi, Marco Valetti, Paola Bazza, Niccolo Miraglia, Ermanno Valoti
  • Patent number: 8664196
    Abstract: The present invention provides a shark-like chondroitin sulphate and a process for the preparation thereof. In particular, the present invention relates to a shark-like chondroitin sulphate, having a very low amount of 4-sulphate, a high charge density and a biological activity comparable to natural chondroitin sulphates. The invention also relates to a process for the preparation of said shark-like chondroitin sulphate affording substantially higher productivities and better reproducibility of product quality. The shark-like chondroitin sulphate of the invention shows a high molecular mass and its in vitro biological and anti-inflammatory effectiveness has been shown to be comparable to that of natural products making this polysaccharide potentially useful as a drug in pharmaceutical preparations and nutraceuticals.
    Type: Grant
    Filed: May 20, 2011
    Date of Patent: March 4, 2014
    Assignee: Gnosis S.p.A.
    Inventors: Ermanno Valoti, Niccolò Miraglia, Davide Bianchi, Marco Valetti, Paola Bazza
  • Publication number: 20120295865
    Abstract: The present invention provides a shark-like chondroitin sulphate and a process for the preparation thereof. In particular, the present invention relates to a shark-like chondroitin sulphate, having a very low amount of 4-sulphate, a high charge density and a biological activity comparable to natural chondroitin sulphates. The invention also relates to a process for the preparation of said shark-like chondroitin sulphate affording substantially higher productivities and better reproducibility of product quality. The shark-like chondroitin sulphate of the invention shows a high molecular mass and its in vitro biological and anti-inflammatory effectiveness has been shown to be comparable to that of natural products making this polysaccharide potentially useful as a drug in pharmaceutical preparations and nutraceuticals.
    Type: Application
    Filed: May 20, 2011
    Publication date: November 22, 2012
    Applicant: GNOSIS S.P.A.
    Inventors: Ermanno Valoti, Niccoló Miraglia, Davide Bianchi, Marco Valetti, Paola Bazza
  • Publication number: 20120289477
    Abstract: A process for the preparation of a chondroitin sulphate salt with an average molecular weight (Mw) of 10-30 kDa via chemical sulphation of an unsulphated chondroitin backbone is provided. The unsulphated chondroitin can be obtained by acid hydrolysis of a capsular polysaccharide K4 made directly from E. coli strain O5:K4:H4 or directly produced from a genetically modified strain of E. coli. Sulphation of the N-acetyl-D-galactosamine residue at position 4 or 6 takes place simultaneously in the same polysaccharide chain, simulating the sulphation pattern observed in natural chondroitin sulphate.
    Type: Application
    Filed: October 11, 2011
    Publication date: November 15, 2012
    Inventors: Davide BIANCHI, Marco Valetti, Paola Bazza, Niccolò Miraglia, Ermanno Valoti
  • Patent number: 7947662
    Abstract: The present invention relates to folates, compositions and uses thereof; In particular, this invention describes a crystalline or amorphous compound which is a substituted or unsubstituted folate or a reduced folate, or the natural or unnatural isomers thereof, of at least one organic base, as well as compositions and uses thereof. The compounds of the invention show a long lasting stability as well as a peculiarly high water-solubility.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 24, 2011
    Assignee: GNOSIS S.p.A.
    Inventors: Ermanno Valoti, Davide Bianchi, Marco Valetti
  • Publication number: 20090209543
    Abstract: The present invention relates to folates, compositions and uses thereof; In particular, this invention describes a crystalline or amorphous compound which is a substituted or unsubstituted folate or a reduced folate, or the natural or unnatural isomers thereof, of at least one organic base, as well as compositions and uses thereof. The compounds of the invention show a long lasting stability as well as a peculiarly high water-solubility.
    Type: Application
    Filed: February 20, 2008
    Publication date: August 20, 2009
    Applicant: GNOSIS S.p.A.
    Inventors: Ermanno Valoti, Davide Bianchi, Marco Valetti