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).
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Publication number: 20230132713Abstract: 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: ApplicationFiled: September 24, 2020Publication date: May 4, 2023Inventors: Dan LEWITUS, Sabrina ROISMAN, Anna DOTAN
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Publication number: 20220378699Abstract: Provided are solid self-emulsifying Cannabis plant extract formulations, methods for their preparation and uses thereof.Type: ApplicationFiled: October 26, 2020Publication date: December 1, 2022Inventors: Dan LEWITUS, Faran LEVI, Rina BINYAMINI, Almog UZIEL
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Publication number: 20220218879Abstract: 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: ApplicationFiled: April 14, 2020Publication date: July 14, 2022Inventors: Dan LEWITUS, Yael ROTH
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Patent number: 11247819Abstract: 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: GrantFiled: June 27, 2018Date of Patent: February 15, 2022Assignee: Elbit Systems Ltd.Inventors: Shlomo Alkaher, Dan Lewitus, Amos Ophir, Ana Lea Dotan
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Publication number: 20210260546Abstract: 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: ApplicationFiled: March 8, 2021Publication date: August 26, 2021Applicant: Shenkar Engineering Design ArtInventors: Dan LEWITUS, Tal SHPIGEL
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Patent number: 10967346Abstract: 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: GrantFiled: September 11, 2017Date of Patent: April 6, 2021Assignee: Shenkar Engineering Design ArtInventors: Dan Lewitus, Tal Shpigel Shtauber
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Publication number: 20210047765Abstract: 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: ApplicationFiled: December 2, 2018Publication date: February 18, 2021Inventors: Ilanit MOR, Alon MOSHE, Ana Lea DOTAN, Dan LEWITUS, Yael ROTH, Gilad GOTESMAN, Noam SIDELMAN
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Publication number: 20190270060Abstract: 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: ApplicationFiled: September 11, 2017Publication date: September 5, 2019Applicant: Shenkar Engineering Design ArtInventors: Dan LEWITUS, Tal SHPIGEL
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Patent number: 10160831Abstract: 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: GrantFiled: October 19, 2015Date of Patent: December 25, 2018Assignee: Shenkar College of Engineering and DesignInventors: Dan Lewitus, Moran Fishman
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Publication number: 20180305099Abstract: 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: ApplicationFiled: June 27, 2018Publication date: October 25, 2018Applicant: Elbit Systems Ltd.Inventors: Shlomo ALKAHER, Dan LEWITUS, Amos OPHIR, Ana Lea DOTAN
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Patent number: 10086940Abstract: 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: GrantFiled: June 26, 2017Date of Patent: October 2, 2018Assignee: ELBIT SYSTEMS LTD.Inventors: Shlomo Alkaher, Dan Lewitus, Amos Ophir, Ana Lea Dotan, Yoram Ilan Lipovsky
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Publication number: 20170327642Abstract: 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: ApplicationFiled: October 19, 2015Publication date: November 16, 2017Applicant: Shenkar College of Engineering and DesignInventors: Dan LEWITUS, Moran FISHMAN
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Publication number: 20170320573Abstract: 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: ApplicationFiled: June 26, 2017Publication date: November 9, 2017Inventors: Shlomo ALKAHER, Dan Lewitus, Amos Ophir, Ana Lea Dotan, Yoram Ilan Lipovsky
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Publication number: 20170291706Abstract: 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: ApplicationFiled: June 26, 2017Publication date: October 12, 2017Inventors: Shlomo ALKAHER, Yoram ILAN LIPOVSKY, Dan LEWITUS, Amos OPHIR, Ana Lea DOTAN
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Publication number: 20120237557Abstract: Nanocomposite fibers containing one or more carbon nanotubes encapsulated in an polysaccharide gel matrix.Type: ApplicationFiled: November 30, 2011Publication date: September 20, 2012Applicant: RUTGERS, THE STATE UNIVERSITY OF NEW JERSEYInventors: Dan Lewitus, Joachim B. Kohn, Alexander Neimark, John Landers