Patents by Inventor Dan Lewitus

Dan Lewitus 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: 20230132713
    Abstract: There are provided herein bioadhesive compositions which include at least one catechol derivatives, such as, caffeic acid derivatives, and at least one synthetic thermoplastic polymer, wherein exposure to heat causes the bioadhesive composition to transform into a non-solid state and to cohesively adhere to a biological tissue upon subsequent cooling. Further provided are methods of making the compositions and uses thereof in repairing tissue damage, such as, for example, in hernia repair surgeries.
    Type: Application
    Filed: September 24, 2020
    Publication date: May 4, 2023
    Inventors: Dan LEWITUS, Sabrina ROISMAN, Anna DOTAN
  • Publication number: 20220378699
    Abstract: Provided are solid self-emulsifying Cannabis plant extract formulations, methods for their preparation and uses thereof.
    Type: Application
    Filed: October 26, 2020
    Publication date: December 1, 2022
    Inventors: Dan LEWITUS, Faran LEVI, Rina BINYAMINI, Almog UZIEL
  • Publication number: 20220218879
    Abstract: There is provided herein a method of coating a polyurethane surface of an insertable medical device, the method comprising obtaining an insertable medical device or a part thereof comprising a polyurethane surface; performing a direct thiolization of the polyurethane surface to produce thiolated polyurethane surface comprising free thiol groups, the direct thiolization comprises a direct reaction between a secondary amine of the polyurethane surface and ethylene sulphide (ES) to form a covalent bond between the amine and the free thiol group; and reacting the thiolated polyurethane surface with a therapeutic/antithrombogenic compound having a vinyl/methacrylate functional group through thiol-ene click reaction, to produce an insertable medical device coated with a therapeutic/antithrombogenic and abrasion (delamination)-resistant coating.
    Type: Application
    Filed: April 14, 2020
    Publication date: July 14, 2022
    Inventors: Dan LEWITUS, Yael ROTH
  • Patent number: 11247819
    Abstract: A biodegradable polymeric sheet may be configured to undergo biodegradation on the ground responsive to an exposure to free air and natural day light. The biodegradable polymeric sheet may include a first layer comprising polysaccharide at a weight % of between 15% to 50% and a polyester matrix, the first layer is configured to form a water barrier when in contact with water; a second layer comprising a polysaccharide at a weight % of at least 40% and a polyester matrix; and a third layer comprising polysaccharide at a weight % of between 15% to 50%, a polyester matrix and an additive configured to accelerate disintegration of the polymeric sheet when exposed to natural day light, the third layer is configured to form a water barrier when in contact with water.
    Type: Grant
    Filed: June 27, 2018
    Date of Patent: February 15, 2022
    Assignee: Elbit Systems Ltd.
    Inventors: Shlomo Alkaher, Dan Lewitus, Amos Ophir, Ana Lea Dotan
  • Publication number: 20210260546
    Abstract: An organic solvent-free method for producing a plurality of microsphere having an average diameter of less than 500 ?m in diameter and having average contact angle ?c greater than 140°, consisting essentially of a biocompatible hot-melt carrier vehicle and a payload substance to be delivered, comprising; melting and mixing a polymer carrier vehicle which is solid at room temperature and at least one payload substance, and dispensing microportions of the molten mixture through a droplet-forming space onto a cooled solid superoleophobic surface.
    Type: Application
    Filed: March 8, 2021
    Publication date: August 26, 2021
    Applicant: Shenkar Engineering Design Art
    Inventors: Dan LEWITUS, Tal SHPIGEL
  • Patent number: 10967346
    Abstract: Provided is an organic solvent-free method for producing a plurality of microsphere having an average diameter of less than 500 ?m in diameter and having average contact angle ?c greater than 140°, consisting essentially of a biocompatible hot-melt carrier vehicle and a payload substance to be delivered, including melting and mixing a polymer carrier vehicle which is solid at room temperature and at least one payload substance, and dispensing microportions of the molten mixture through a droplet-forming space onto a cooled solid superoleophobic surface.
    Type: Grant
    Filed: September 11, 2017
    Date of Patent: April 6, 2021
    Assignee: Shenkar Engineering Design Art
    Inventors: Dan Lewitus, Tal Shpigel Shtauber
  • Publication number: 20210047765
    Abstract: The present invention provides a rapid and highly efficient process for treating textile threads, especially dyeing, and treated threads obtained thereby of textile threads.
    Type: Application
    Filed: December 2, 2018
    Publication date: February 18, 2021
    Inventors: Ilanit MOR, Alon MOSHE, Ana Lea DOTAN, Dan LEWITUS, Yael ROTH, Gilad GOTESMAN, Noam SIDELMAN
  • Publication number: 20190270060
    Abstract: Provided is an organic solvent-free method for producing a plurality of microsphere having an average diameter of less than 500 ?m in diameter and having average contact angle ?c greater than 140°, consisting essentially of a biocompatible hot-melt carrier vehicle and a payload substance to be delivered, including melting and mixing a polymer carrier vehicle which is solid at room temperature and at least one payload substance, and dispensing microportions of the molten mixture through a droplet-forming space onto a cooled solid superoleophobic surface.
    Type: Application
    Filed: September 11, 2017
    Publication date: September 5, 2019
    Applicant: Shenkar Engineering Design Art
    Inventors: Dan LEWITUS, Tal SHPIGEL
  • Patent number: 10160831
    Abstract: Provided are polymers having a repeating unit including at least one astaxanthin moiety. Also provided are processes for preparing the polymers and various uses thereof.
    Type: Grant
    Filed: October 19, 2015
    Date of Patent: December 25, 2018
    Assignee: Shenkar College of Engineering and Design
    Inventors: Dan Lewitus, Moran Fishman
  • Publication number: 20180305099
    Abstract: A biodegradable polymeric sheet may be configured to undergo biodegradation on the ground responsive to an exposure to free air and natural day light. The biodegradable polymeric sheet may include a first layer comprising polysaccharide at a weight % of between 15% to 50% and a polyester matrix, the first layer is configured to form a water barrier when in contact with water; a second layer comprising a polysaccharide at a weight % of at least 40% and a polyester matrix; and a third layer comprising polysaccharide at a weight % of between 15% to 50%, a polyester matrix and an additive configured to accelerate disintegration of the polymeric sheet when exposed to natural day light, the third layer is configured to form a water barrier when in contact with water.
    Type: Application
    Filed: June 27, 2018
    Publication date: October 25, 2018
    Applicant: Elbit Systems Ltd.
    Inventors: Shlomo ALKAHER, Dan LEWITUS, Amos OPHIR, Ana Lea DOTAN
  • Patent number: 10086940
    Abstract: A method of delivering over the air, shelled portions of fluids or granular substances containing effective ingredients, to a target, includes the following stages: selecting a type and a size of the shelled portions containing the required effective ingredients, based on mission parameters and physical data of a scene containing the target; conveying the shelled portions to a delivery point, based on the mission parameters and the physical data; and ballistically delivering the shelled portions towards the target, wherein the shelled portions comprise fluids or granular substances covered by shells that provide the shelled portions a ballistic coefficient that is significantly higher than a ballistic coefficient of similar portions without the shells.
    Type: Grant
    Filed: June 26, 2017
    Date of Patent: October 2, 2018
    Assignee: ELBIT SYSTEMS LTD.
    Inventors: Shlomo Alkaher, Dan Lewitus, Amos Ophir, Ana Lea Dotan, Yoram Ilan Lipovsky
  • Publication number: 20170327642
    Abstract: Provided are polymers having a repeating unit including at least one astaxanthin moiety. Also provided are processes for preparing the polymers and various uses thereof.
    Type: Application
    Filed: October 19, 2015
    Publication date: November 16, 2017
    Applicant: Shenkar College of Engineering and Design
    Inventors: Dan LEWITUS, Moran FISHMAN
  • Publication number: 20170320573
    Abstract: A method of delivering over the air, shelled portions of fluids or granular substances containing effective ingredients, to a target, includes the following stages: selecting a type and a size of the shelled portions containing the required effective ingredients, based on mission parameters and physical data of a scene containing the target; conveying the shelled portions to a delivery point, based on the mission parameters and the physical data; and ballistically delivering the shelled portions towards the target, wherein the shelled portions comprise fluids or granular substances covered by shells that provide the shelled portions a ballistic coefficient that is significantly higher than a ballistic coefficient of similar portions without the shells.
    Type: Application
    Filed: June 26, 2017
    Publication date: November 9, 2017
    Inventors: Shlomo ALKAHER, Dan Lewitus, Amos Ophir, Ana Lea Dotan, Yoram Ilan Lipovsky
  • Publication number: 20170291706
    Abstract: A method of delivering, over the air, shelled portions of fluids or granular substances containing effective ingredients, to a target, includes the following stages: selecting a type and a size of the shelled portions containing the required effective ingredients, based on mission parameters and physical data of a scene containing the target; conveying the shelled portions to a delivery point, based on the mission parameters and the physical data; and ballistically delivering the shelled portions towards the target, wherein the shelled portions comprise fluids or granular substances covered by shells that provide the shelled portions a ballistic coefficient that is significantly higher than a ballistic coefficient of similar portions without the shells.
    Type: Application
    Filed: June 26, 2017
    Publication date: October 12, 2017
    Inventors: Shlomo ALKAHER, Yoram ILAN LIPOVSKY, Dan LEWITUS, Amos OPHIR, Ana Lea DOTAN
  • Publication number: 20120237557
    Abstract: Nanocomposite fibers containing one or more carbon nanotubes encapsulated in an polysaccharide gel matrix.
    Type: Application
    Filed: November 30, 2011
    Publication date: September 20, 2012
    Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEY
    Inventors: Dan Lewitus, Joachim B. Kohn, Alexander Neimark, John Landers