Patents by Inventor Shabtay Dikstein

Shabtay Dikstein 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: 11426361
    Abstract: A method for treatment of irritation or damage to corneal or conjunctival epithelial cells, particularly for irritation or damage to corneal or conjunctival epithelial cells due to severe Sjögren's syndrome, comprising applying topically to an affected eye an aqueous solution of glycerol characterized by a glycerol concentration of >1% (w/v), most preferably 2.5% (w/v). The method is effective even in the case of very low tear formation, and its effectiveness cannot be explained by the known humectant effect of glycerol.
    Type: Grant
    Filed: March 3, 2021
    Date of Patent: August 30, 2022
    Assignee: Resdevco Research and Development Co. Ltd.
    Inventor: Shabtay Dikstein
  • Publication number: 20210186892
    Abstract: A method for treatment of irritation or damage to conical or conjunctival epithelial cells, particularly for irritation or damage to corneal or conjunctival epithelial cells due to severe Sjögren's syndrome, comprising applying topically to an affected eye an aqueous solution of glycerol characterized by a glycerol concentration of >1% (w/v), most preferably 2.5% (w/v). The method is effective even in the case of very low tear formation, and its effectiveness cannot be explained by the known humectant effect of glycerol.
    Type: Application
    Filed: March 3, 2021
    Publication date: June 24, 2021
    Inventor: Shabtay Dikstein
  • Patent number: 11033513
    Abstract: A method for treatment of irritation or damage to conical or conjunctival epithelial cells, particularly for irritation or damage to corneal or conjunctival epithelial cells due to severe Sjögren's syndrome, by applying topically to an affected eye an aqueous solution of glycerol characterized by a glycerol concentration of >1% (w/v), most preferably 2.5% (w/v). The method is effective even in the case of very low tear formation, and its effectiveness cannot be explained by the known humectant effect of glycerol.
    Type: Grant
    Filed: September 4, 2019
    Date of Patent: June 15, 2021
    Assignee: Resdevco Research and Development Co. Ltd.
    Inventor: Shabtay Dikstein
  • Patent number: 10660961
    Abstract: The present invention provides a method of treatment of irritation of skin or mucous cells. The method comprises applying topically a composition comprising a combination of: xylitol, myonisotiol or mannitol or any combination of these; glycerol and/or urea; water; in the absence of any oil in water or wax in water emulsion.
    Type: Grant
    Filed: August 28, 2017
    Date of Patent: May 26, 2020
    Assignee: RESDEVCO RESEARCH AND DEVELOPMENT CO., LTD.
    Inventor: Shabtay Dikstein
  • Publication number: 20190388361
    Abstract: A method for treatment of irritation or damage to conical or conjunctival epithelial cells, particularly for irritation or damage to corneal or conjunctival epithelial cells due to severe Sjögren's syndrome, by applying topically to an affected eye an aqueous solution of glycerol characterized by a glycerol concentration of >1% (w/v), most preferably 2.5% (w/v). The method is effective even in the case of very low tear formation, and its effectiveness cannot be explained by the known humectant effect of glycerol.
    Type: Application
    Filed: September 4, 2019
    Publication date: December 26, 2019
    Inventor: Shabtay Dikstein
  • Patent number: 10183076
    Abstract: A topical pharmaceutical or cosmetic composition for treatment of irritation of mucous cells such as mucosal cells of the eye, nose, and vagina is disclosed. The composition comprises an aqueous solution of at least one polyol selected from the group consisting of xylitol, myoinositol and mannitol and at least one substance selected from the group consisting of glycerol and urea. The composition contains less than 0.01% inorganic salt and is free of any oil-in-water or wax-in-water emulsion. In particularly preferred embodiments, the composition comprises an aqueous solution containing 1.5-5% (w/v) xylitol and 0.9-2.0% (w/v) glycerol.
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: January 22, 2019
    Assignee: RESDEVCO RESEARCH AND DEVELOPMENT CO. L
    Inventor: Shabtay Dikstein
  • Publication number: 20170354624
    Abstract: A topical pharmaceutical or composition for prevention and treatment of irritation to skin cells. The composition comprises an aqueous solution of xylitol and glycerol. In a preferred embodiment, the composition comprises 5% (w/w) xylitol, 5% (w/w) glycerol, a viscosity-enhancing agent, base to bring to the pH to 4.9, and optionally, a pharmaceutically active agent.
    Type: Application
    Filed: August 28, 2017
    Publication date: December 14, 2017
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay DIKSTEIN
  • Publication number: 20170354735
    Abstract: The present invention provides a method of treatment of irritation of skin or mucous cells. The method comprises applying topically a composition comprising a combination of: xylitol, myonisotiol or mannitol or any combination of these; glycerol and/or urea; water; in the absence of any oil in water or wax in water emulsion.
    Type: Application
    Filed: August 28, 2017
    Publication date: December 14, 2017
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay DIKSTEIN
  • Publication number: 20170021023
    Abstract: A topical pharmaceutical or cosmetic composition for treatment of irritation of mucous cells such as mucosal cells of the eye, nose, and vagina is disclosed. The composition comprises an aqueous solution of at least one polyol selected from the group consisting of xylitol, myoinositol and mannitol and at least one substance selected from the group consisting of glycerol and urea. The composition contains less than 0.01% inorganic salt and is free of any oil-in-water or wax-in-water emulsion. In particularly preferred embodiments, the composition comprises an aqueous solution containing 1.5-5% (w/v) xylitol and 0.9-2.0% (w/v) glycerol.
    Type: Application
    Filed: October 6, 2016
    Publication date: January 26, 2017
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay DIKSTEIN
  • Publication number: 20160331764
    Abstract: A composition for delivering cholecalciferol to skin and/or mucous membranes via topical application. The composition comprises xylitol and cholecalciferol in emulsion. Optionally, the composition may include additional components such as glycerol, polyethylene glycol, propylene glycol, pharmaceutical agents, stabilizers, acids, bases, buffers, antioxidants, emulsifiers, suspending agents, and preservatives. Methods of preparation of the composition and of using it as a topical treatment for delivery of cholecalciferol to the skin and/or mucous membranes are also disclosed.
    Type: Application
    Filed: January 25, 2015
    Publication date: November 17, 2016
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay DIKSTEIN
  • Patent number: 8912166
    Abstract: An ophthalmic preparation and method, usable to treat conjunctivochalasis. The ophthalmic preparation comprises an aqueous solution of glycerol. The preparation may also include additional components including high molecular weight polymers for viscosity control and pharmacologically active substances. The method includes administering an ophthalmic preparation including an aqueous solution of glycerol to a patient.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: December 16, 2014
    Assignee: Resdevco Research and Development Co. Ltd.
    Inventor: Shabtay Dikstein
  • Publication number: 20140057983
    Abstract: An ophthalmic preparation and method, usable to treat conjunctivochalasis. The ophthalmic preparation comprises an aqueous solution of glycerol. The preparation may also include additional components including high molecular weight polymers for viscosity control and pharmacologically active substances. The method includes administering an ophthalmic preparation including an aqueous solution of glycerol to a patient.
    Type: Application
    Filed: November 5, 2013
    Publication date: February 27, 2014
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay DIKSTEIN
  • Publication number: 20080207771
    Abstract: The present invention provides new topical pharmaceutical or cosmetic compositions for the prevention and treatment of irritation of mucous cells, or skin cells, comprising a combination of: xylitol, myoinositol or mannitol or any combination of these; glycerol and/or urea; water; in the absence of any oil in water or wax in water emulsion.
    Type: Application
    Filed: May 7, 2006
    Publication date: August 28, 2008
    Applicant: RESDEVCO RESEARCH AND DEVELOPMENT CO. LTD.
    Inventor: Shabtay Dikstein
  • Publication number: 20060292185
    Abstract: The present invention concerns Topical skin preparations for the use in the prevention of atrophy and aging of the skin, comprising a testosterone ester with an esterifying acid having between six to eleven carbon atoms.
    Type: Application
    Filed: August 16, 2004
    Publication date: December 28, 2006
    Inventor: Shabtay Dikstein
  • Patent number: 5376365
    Abstract: There are provided pharmaceutical compositions for intranasal application for the alleviation of nasal discomforts, like "dry nose syndrome" and for the treatment of a variety of diseases. These are based on the combination of an isotonic humectant solution and a high molecular weight polymer which provides the required viscosity. Preferred compositions have a non-Newtonian viscosity profile. The composition can contain one or more pharmaceutically active ingredient.
    Type: Grant
    Filed: February 18, 1993
    Date of Patent: December 27, 1994
    Assignee: Resdevco Research & Development Company Ltd.
    Inventor: Shabtay Dikstein
  • Patent number: 5106615
    Abstract: Isotonic humectant eyedrops which have pronounced non-Newtonian rheological properties, simulating the rheological behavior of human tears. The eyedrops are of value in the treatment of various abnormal states of the eye such as dry eye syndrome. They can also serve as carrier for a variety of pharmaceutically active ingredients. Essential components are in combination water, an anionic polymer having a M.W. in the 500,000 to about 4,000,000 range at a concentration so that the viscosity measured at a 1 sec.sup.-1 shear rate does not exceed about 150 cp. and a low molecular weight (of 500 or less M.W.) humectant polyol at a concentration of about isotonicity or slightly above. The solution must contain less than about 1.5 mM salt calculated as sodium chloride, not including the salts of the anionic polymeric viscosity enhancer, as higher concentrations destroy the non-Newtonian rheological properties. A process for treating dry eye syndrome by application of such eyedrops.
    Type: Grant
    Filed: November 30, 1990
    Date of Patent: April 21, 1992
    Inventor: Shabtay Dikstein
  • Patent number: 4610978
    Abstract: Cosmetic and dermatological compositions containing 1.alpha.-hydroxycholeciferol and a suitable carrier useful in topical treatment of skin disorders and methods employing same are disclosed. Compositions containing 1.alpha.,25-dihydroxycholecalciferol and a suitable carrier and methods employing same are also disclosed for dermatological and cosmetic uses. Various formulations of the compositions including creams, lotions, ointments and sprays are disclosed for use in accordance with this invention. The compositions and formulations may contain additional active ingredients.
    Type: Grant
    Filed: March 15, 1984
    Date of Patent: September 9, 1986
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Shabtay Dikstein, Abraham Hartzshtark
  • Patent number: 4419367
    Abstract: The present invention relates to pharmaceutical and veterinary compositions for use as sex stimulants for mammals which comprise an active ingredient phenylethylamine substituted in the ortho or in the meta position by a methoxy group, a methylthio group, by a chlorine atom or by a bromine atom, as well as salts and complexes of these compounds. The invention further relates to the ortho- and meta- methoxyphenylethylamine and methylthiophenylethylamine compounds and to their salts and complexes as novel compounds.
    Type: Grant
    Filed: February 22, 1980
    Date of Patent: December 6, 1983
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Shabtay Dikstein, Mark Segal
  • Patent number: 4282248
    Abstract: The present invention relates to novel compounds of the general formula ##STR1## wherein R.sup.1 is --H or --CO--alk, wherein alk is lower alkyl of 1 to 5 carbon atoms; R.sup.2 is 1,1-dimethylheptyl or 1,2-dimethylheptyl, Q is --CH.sub.3 when A------B is a single bond, and Q is --CH.sub.2 OR.sup.4 when A------B is a double bond, and R.sup.4 is --H or --CO--alk where alk is lower alkyl of 1 to inclusive 5 carbon atoms.The invention relates both to the isomeric mixtures and to the individual isomers of the above compounds. Furthermore the invention relates to pharmaceutical compositions containing a compound defined above as active ingredient. The pharmaceutical compositions are of value as central nervous system depressants, as sedatives, as tranquilizers, as anticonvulsant agents, as effective agents against migraine, for the treatment of glaucoma, as antidiarrheal agents and as antiinflammatory agents.
    Type: Grant
    Filed: July 23, 1979
    Date of Patent: August 4, 1981
    Inventors: Raphael Mechoulam, Naphtali Lander, Shabtay Dikstein
  • Patent number: RE33107
    Abstract: Cosmetic and dermatological compositions containing 1.alpha.-hydroxycholeciferol and a suitable carrier useful in topical treatment of skin disorders and methods employing same are disclosed. Compositions containing 1.alpha.,25-dihydroxycholecalciferol and a suitable carrier and methods employing same are also disclosed for dermatological and cosmetic uses. Various formulations of the compositions including creams, lotions, ointments and sprays are disclosed for use in accordance with this invention. The compositions and formulations may contain additional active ingredients.
    Type: Grant
    Filed: September 8, 1988
    Date of Patent: November 7, 1989
    Assignee: Yissum Research Development Company of the Hebrew University of Jerusalem
    Inventors: Shabtay Dikstein, Abraham Hartzshtark