Patents by Inventor David Rutenberg

David Rutenberg 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: 10561674
    Abstract: The present invention discloses processes for the preparation of phospholipid-enriched dairy products as nutraceuticals for the formulation of functional foods, the processes include the steps of: combining a non-dairy-based PL-containing material, having phosphatidylserine (PS) and/or phosphatidic acid (PA) in the PL-containing material, wherein the PS and/or PA is derived in part from an enzymatically-processed lecithin as a PS-calcium and/or -magnesium salt and/or a PA-calcium and/or-magnesium salt via transphosphatidylation with phospholipase D in the presence of L-serine and a calcium and/or magnesium salt, with water and an oil component to form a paste; removing an excess amount of the water from the paste to form a PL-oil solution; and mixing the PL-oil solution with a dairy component, thereby obtaining a PL-enriched dairy product. Alternatively, the PL-oil solution has a weight-to-weight (w-w) concentration of at least about 0.01% of a residual amount of the water to the PL-containing material.
    Type: Grant
    Filed: August 8, 2016
    Date of Patent: February 18, 2020
    Assignee: Lipogen Ltd.
    Inventors: David Rutenberg, Ilan Perry
  • Publication number: 20160339044
    Abstract: The present invention discloses processes for the preparation of phospholipid-enriched dairy products as nutraceuticals for the formulation of functional foods, the processes include the steps of: combining a non-dairy-based PL-containing material, having phosphatidylserine (PS) and/or phosphatidic acid (PA) in the PL-containing material, wherein the PS and/or PA is derived in part from an enzymatically-processed lecithin as a PS-calcium and/or -magnesium salt and/or a PA-calcium and/or -magnesium salt via transphosphatidylation with phospholipase D in the presence of L-serine and a calcium and/or magnesium salt, with water and an oil component to form a paste; removing an excess amount of the water from the paste to form a PL-oil solution; and mixing the PL-oil solution with a dairy component, thereby obtaining a PL-enriched dairy product. Alternatively, the PL-oil solution has a weight-to-weight (w-w) concentration of at least about 0.01% of a residual amount of the water to the PL-containing material.
    Type: Application
    Filed: August 8, 2016
    Publication date: November 24, 2016
    Inventors: David Rutenberg, Ilan Perry
  • Patent number: 9248137
    Abstract: The present invention discloses pharmaceutical/nutritional compositions and methods for alleviating symptoms associated with perimenopausal and/or menopausal disorder or discomfort. The methods include the step of administering, to a subject in need thereof, an effective amount of a composition including at least 2% (w/w) phosphatidic acid, or salts thereof, out of the total effective composition, as a first effective ingredient for alleviating at least one discomfort symptom. Preferably, the composition further includes a suitable amount of at least one bio-available form of magnesium as a second effective ingredient. Preferably, at least one bio-available form is selected from the group consisting of: magnesium oxide, magnesium citrate, magnesium hydroxide, magnesium stearate, and a magnesium salt of the phosphatidic acid.
    Type: Grant
    Filed: February 26, 2015
    Date of Patent: February 2, 2016
    Assignee: Lipogen Ltd.
    Inventors: David Rutenberg, Rina Perry Faierwerger
  • Publication number: 20150265639
    Abstract: The present invention discloses processes for the preparation of phospholipid-enriched dairy products as nutraceuticals for the formulation of functional foods, the processes include the steps of: combining a non-dairy-based PL-containing material, having phosphatidylserine (PS) or phosphatidic acid (PA) in the PL-containing material, with water and an oil component to form a paste; removing an excess amount of the water from the paste to form a PL-oil solution; and mixing the PL-oil solution with a dairy component, thereby obtaining a PL-enriched dairy product. Preferably, the PS or the PA is derived in part from an enzymatically-processed lecithin. Preferably, the step of combining is performed at a weight-to-weight (w-w) concentration of at least about 2% of the water to said PL-containing material. Preferably, the PL-oil solution has a weight-to-weight (w-w) concentration of at least about 0.01% of a residual amount of the water to the PL-containing material.
    Type: Application
    Filed: June 2, 2015
    Publication date: September 24, 2015
    Inventors: David Rutenberg, Ilan Perry
  • Patent number: 9119865
    Abstract: The present invention discloses pharmaceutical/nutritional compositions and methods for alleviating symptoms associated with premenstrual syndrome (PMS) and premenstrual dysphoric disorder (PMDD). The pharmaceutical/nutritional compositions include at least 2% (w/w) phosphatidyl-L-serine, or salts thereof, out of a total effective composition, as a first effective ingredient; and a suitable amount of at least one bio-available form of magnesium as a second effective ingredient. Preferably, the bio-available form of magnesium is magnesium oxide, magnesium citrate, magnesium hydroxide, magnesium stearate, or a magnesium salt of the phosphatidyl-L-serine. Preferably, the composition further includes a pharmaceutical or nutritional excipient. Preferably, the total effective composition is administrable in a multi-part regimen. Preferably, the total effective composition is administrable by intravenous or oral delivery.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: September 1, 2015
    Assignee: Lipogen Ltd.
    Inventors: David Rutenberg, Rina Perry Faierwerger
  • Publication number: 20150164925
    Abstract: The present invention discloses pharmaceutical/nutritional compositions and methods for alleviating symptoms associated with perimenopausal and/or menopausal disorder or discomfort. The methods include the step of administering, to a subject in need thereof, an effective amount of a composition including at least 2% (w/w) phosphatidic acid, or salts thereof, out of the total effective composition, as a first effective ingredient for alleviating at least one discomfort symptom. Preferably, the composition further includes a suitable amount of at least one bio-available form of magnesium as a second effective ingredient. Preferably, at least one bio-available form is selected from the group consisting of: magnesium oxide, magnesium citrate, magnesium hydroxide, magnesium stearate, and a magnesium salt of the phosphatidic acid.
    Type: Application
    Filed: February 26, 2015
    Publication date: June 18, 2015
    Inventors: David Rutenberg, Rina Perry Faierwerger
  • Patent number: 8846338
    Abstract: The present invention discloses processes for the preparation of phosphatides and salts thereof, the processes including the steps of: using at least one raw material lecithin as a substrate and a water-insoluble surfactant-matrix material having a particulate size greater than about 0.01 mm; and enzymatically processing at least one raw material lecithin with the water-insoluble surfactant-matrix material, phospholipase-D, racemic or enantiomerically-pure serine, amino acid, and/or amine and salts in a pH-buffered aqueous solution, wherein the step of processing is performed in a single-phase reaction environment, to produce phosphatides, or the salts thereof, having a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the step of processing is performed in the presence of a buffer having a pH in the range of about 4.5-8.0. Preferably, the step of processing is performed in the presence of a calcium salt.
    Type: Grant
    Filed: July 14, 2009
    Date of Patent: September 30, 2014
    Assignee: Lipogen Ltd.
    Inventor: David Rutenberg
  • Publication number: 20140155354
    Abstract: The present invention discloses processes for the preparation of phospholipid-enriched dairy products as nutraceuticals for the formulation of functional foods, and nutraceutical and/or pharmaceutical compositions thereof, the processes include the steps of: combining a non-dairy-based PL-containing material with an oil component and water to form a paste; removing an excess amount of the water from the paste to form a PL-oil solution; and mixing the PL-oil solution with a dairy component, thereby obtaining a PL-enriched dairy product. Preferably, the PL-containing material includes at least one material selected from the group consisting of: a vegetal-derived lecithin, a non-vegetal-derived lecithin, a de-oiled lecithin, a native lecithin-oil solution, and an enzymatically-processed lecithin. Preferably, the PL-oil solution has a weight-to-weight (w-w) concentration of at least about 0.01% of a residual amount of the water to the PL-containing material.
    Type: Application
    Filed: March 3, 2013
    Publication date: June 5, 2014
    Applicant: Lipogen Ltd.
    Inventors: David Rutenberg, Ilan Perry
  • Patent number: 8546104
    Abstract: The present invention discloses processes a process for the preparation of phosphatide-salt complexes, the process including the steps of: using at least one raw material lecithin as a substrate; and enzymatically processing at least one raw material lecithin with phospholipase-D, racemic or enantiomerically-pure serine, and/or amine in an aqueous carboxylate-salt-complex solution, wherein the step of processing is performed in a single-phase reaction environment, to produce phosphatide-salt complexes having a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the step of processing is performed at a pH in the range of about 4.5-8.0 at a temperature in the range of about 25-60° C. Preferably, the aqueous carboxylate-salt-complex solution is formed from an aqueous solution of a carboxylic acid with a chain length of C2-C8 and a salt in an approximately 1:2 (weight per weight) acid-to-salt ratio.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: October 1, 2013
    Assignee: Lipogen Ltd.
    Inventor: David Rutenberg
  • Patent number: 8399432
    Abstract: The present invention discloses pharmaceutical/nutritional compositions for alleviating symptoms associated with premenstrual syndrome (PMS) and methods of treatment for PMS using such pharmaceutical/nutritional composition including: at least 2% (w/w) phosphatidyl-L-serine, or salts thereof, out of a total composition, as an effective ingredient, wherein: the phosphatidyl-L-serine has a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the phosphatidyl-L-serine is produced by enzymatic reaction of at least one raw material lecithin with phospholipase-D; at least one raw material lecithin is selected from the group consisting of: a vegetal lecithin and a non-vegetal lecithin; and the phospholipase-D is selected from the group consisting of: vegetal phospholipase-D, bacterial-originated enzyme phospholipase-D, and a combination of vegetal phospholipase-D and bacterial-originated enzyme phospholipase-D.
    Type: Grant
    Filed: October 27, 2009
    Date of Patent: March 19, 2013
    Assignee: Lipogen Ltd.
    Inventors: David Rutenberg, Rina Perry Faierwerger
  • Publication number: 20110212922
    Abstract: The present invention discloses processes a process for the preparation of phosphatide-salt complexes, the process including the steps of: using at least one raw material lecithin as a substrate; and enzymatically processing at least one raw material lecithin with phospholipase-D, racemic or enantiomerically-pure serine, and/or amine in an aqueous carboxylate-salt-complex solution, wherein the step of processing is performed in a single-phase reaction environment, to produce phosphatide-salt complexes having a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the step of processing is performed at a pH in the range of about 4.5-8.0 at a temperature in the range of about 25-60° C. Preferably, the aqueous carboxylate-salt-complex solution is formed from an aqueous solution of a carboxylic acid with a chain length of C2-C8 and a salt in an approximately 1:2 (weight per weight) acid-to-salt ratio.
    Type: Application
    Filed: February 4, 2010
    Publication date: September 1, 2011
    Applicant: LIPOGEN LTD.
    Inventor: David Rutenberg
  • Publication number: 20110098249
    Abstract: The present invention discloses pharmaceutical/nutritional compositions for alleviating symptoms associated with premenstrual syndrome (PMS) and methods of treatment for PMS using such pharmaceutical/nutritional composition including: at least 2% (w/w) phosphatidyl-L-serine, or salts thereof, out of a total composition, as an effective ingredient, wherein: the phosphatidyl-L-serine has a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the phosphatidyl-L-serine is produced by enzymatic reaction of at least one raw material lecithin with phospholipase-D; at least one raw material lecithin is selected from the group consisting of: a vegetal lecithin and a non-vegetal lecithin; and the phospholipase-D is selected from the group consisting of: vegetal phospholipase-D, bacterial-originated enzyme phospholipase-D, and a combination of vegetal phospholipase-D and bacterial-originated enzyme phospholipase-D.
    Type: Application
    Filed: October 27, 2009
    Publication date: April 28, 2011
    Applicant: LIPOGEN LTD.
    Inventors: David Rutenberg, Rina Perry Faierwerger
  • Publication number: 20100036141
    Abstract: The present invention discloses processes for the preparation of phosphatides and salts thereof, the processes including the steps of using at least one raw material lecithin as a substrate and a water-insoluble surfactant-matrix material having a particulate size greater than about 0.01 mm; and enzymatically processing at least one raw material lecithin with the water-insoluble surfactant-matrix material, phospholipase-D, racemic or enantiomerically-pure amino acid, and/or amine and salts in a pH-buffered aqueous solution, wherein the step of processing is performed in a single-phase reaction environment, to produce phosphatides, or the salts thereof, having a structural fatty-acid chain derived from at least one raw material lecithin. Preferably, the step of processing is performed in the presence of a buffer having a pH in the range of about 4.5-8.0. Preferably, the step of processing is performed in the presence of a calcium salt.
    Type: Application
    Filed: July 14, 2009
    Publication date: February 11, 2010
    Applicant: LIPOGEN LTD.
    Inventor: David RUTENBERG
  • Publication number: 20050129738
    Abstract: An infant formula supplemented with phospholipids. A composition for feeding infants is claimed. The composition includes an infant formula base and a phospholipid supplement. The supplement includes a product of an enzymatic reaction between a crude phospholipid source and phospholipase-D and includes phosphatidylserine or salts thereof as an effective ingredient. Phosphatidylserine from the phospholipid supplement represents between 0.1% and 19.99% (w/w) of a total phospholipid content of the composition. Preferably the phosphatidylserine has a structural fatty acid chain derived from the raw material lecithin. The composition is more similar to human milk with regard to phospholipid composition. Methods of production and articles of manufacture are also disclosed.
    Type: Application
    Filed: February 3, 2005
    Publication date: June 16, 2005
    Inventor: David Rutenberg
  • Publication number: 20040022922
    Abstract: The present invention relates to pharmaceutical or nutritional or food composition for feeding infants which is more similar to human milk in a powder or fluid form, having an effect of addressing the shortcomings of the presently known infant formulas by the inclusion of a phospholipid supplement which contains at least 1% (w/w) phosphatidyserine out of the total phospholipid content of the composition wherein the phosphatidylserine has a structural fatty acid chain derived from at least one raw material lecithin selected from the group consisting of soy bean lecithin, rapeseed lecithin, or egg yolk lecithin, and which is produced by reaction pith phospholipase-D.
    Type: Application
    Filed: November 8, 2002
    Publication date: February 5, 2004
    Inventor: David Rutenberg
  • Publication number: 20020072508
    Abstract: An anti-depressant, mental & emotional stress suppressor and mood improver having a prominent action for decreasing blood cortisol level and serotonin reuptake and has an effect of alleviating symptoms associated with depression and mental & emotional stress of a subject administered with the improver. The improver contains as the effective ingredient a combination of phosphatidy-L-serine and phosphatidic acid, or the salts thereof, comprising at least 20% (w/w) phosphatidy-L-serine and typically within the range of about 20%-40% of phosphatidy-L-serine, out of the total phospholipid content of the composition and at least 3% (w/w) of phosphatidic acid, preferably above about 10% and typically within the range of about 20%-40% of phosphatidic acid, out of the total phospholipid content of the composition.
    Type: Application
    Filed: July 3, 2001
    Publication date: June 13, 2002
    Applicant: LIPOGEN LTD.
    Inventor: David Rutenberg