Patents Examined by Nahida Sultana
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Patent number: 11884765Abstract: Disclosed herein are hydrogel compositions comprising a triblock copolymer having a formula A-B-A, wherein A is a polycaprolactone (PCL) block or a polyvalerolactone (PVL) block and B is a polyethylene glycol (PEG) block. Also disclosed are methods of making a hydrogel comprising providing a photoinitiator and a triblock copolymer having a formula A-B-A, wherein the triblock copolymer comprises one or more ethylenically unsaturated moieties; and photocrosslinking the triblock copolymer, thereby forming a hydrogel.Type: GrantFiled: April 2, 2019Date of Patent: January 30, 2024Assignees: BOARD OF REGENTS, THE UNIVERSITY OF TEXAS SYSTEM, NORTHEASTERN UNIVERSITYInventors: Yi Hong, Guohao Dai, Cancan Xu, Wen-han Lee
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Patent number: 11883905Abstract: A wafer processing apparatus includes: a laser apparatus configured to generate a laser beam; a focusing lens optical system configured to focus the laser beam on an inside of a wafer; an arbitrary wave generator configured to supply driving power to the laser apparatus; and a controller configured to control the arbitrary wave generator, wherein the laser beam includes a plurality of pulses sequentially emitted from the laser apparatus, and wherein each of the plurality of pulses is a non-Gaussian pulse, and a full width at half maximum (FWHM) of each of the plurality of pulses ranges from 1 ps to 500 ns.Type: GrantFiled: December 31, 2020Date of Patent: January 30, 2024Inventors: Youngchul Kwon, Manhee Han
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Patent number: 11874435Abstract: Improved methods and apparatus for additive manufacture of an ophthalmic lens, such as a contact lens or intraocular lens. The improvements are directed to repeated application of a monomer according to a pattern of energy transmissibility, such as grayscale image. The method includes intermittent pinning of deposited polymerizable mixture and final cure of the deposited polymerizable mixture. A pattern of multiple defied areas may be manufactured, with each area representing an amount of energy transmissibility associated with that area. Each area may have a light value based upon a scale, such as an 8 bit, 16 bit, 32 bit, 64 bit scale or other scale. In some embodiments, each area may refer to a smallest single component of a digital image.Type: GrantFiled: August 30, 2023Date of Patent: January 16, 2024Assignee: ATHENEUM OPTICAL SCIENCES, LLCInventors: W. Anthony Martin, Ganesh Narayanan Kumar, Randall Pugh
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Patent number: 11872766Abstract: A method of additive manufacturing of a three-dimensional object is disclosed. The method comprises sequentially forming a plurality of layers each patterned according to the shape of a cross section of the object. In some embodiments, the formation of at least one of the layers comprises performing a raster scan to dispense at least a first building material composition, and a vector scan to dispense at least a second building material composition. The vector scan is optionally along a path selected to form at least one structure selected from the group consisting of (i) an elongated structure, (ii) a boundary structure at least partially surrounding an area filled with the first building material, and (iii) an inter-layer connecting structure.Type: GrantFiled: February 10, 2022Date of Patent: January 16, 2024Assignee: Stratasys Ltd.Inventor: Eduardo Napadensky
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Patent number: 11873580Abstract: The present invention provides a process for the viable removal of liquid from lyocell cellulose continuous filament yarns at very high production speeds.Type: GrantFiled: December 20, 2019Date of Patent: January 16, 2024Assignee: LENZING AKTIENGESELLSCHAFTInventors: Johann Pillichshammer, Christoph Schrempf, Andreas Gressenbauer, Ernst Reiter, Martin Neunteufel
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Patent number: 11872761Abstract: A continuous filament additive manufacturing machine for building a part by laying down a continuous mono-filament or composite filament material layer by layer on a tool or substrate. The machine includes a system, such as a robot, operable to move in at least three degrees of freedom, and a placement module coupled to the system and being configured to deposit the continuous filament material. The placement module includes a guide for guiding the material to the part, an ultrasonic compaction device including an ultrasonic driver, an attachment frame and an ultrasonic disk horn coupled to the attachment frame. The ultrasonic driver is coupled to the disk horn and ultrasonically vibrates the horn in a reciprocating manner to melt or flow the material and cause the material to fuse and be compacted to the tool or substrate.Type: GrantFiled: August 12, 2021Date of Patent: January 16, 2024Assignee: NORTHROP GRUMMAN SYSTEMS CORPORATIONInventor: Vernon M. Benson
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Patent number: 11868045Abstract: An object can be made one section at a time, that is layerwise, using an apparatus for making an object using a stereolithographic method. Disclosure generally relates to an apparatus for making a stereolithographic object and a method for making a stereolithographic object. An apparatus (100) for making an object (122) is disclosed.Type: GrantFiled: March 13, 2023Date of Patent: January 9, 2024Inventors: Justin Elsey, Rafael Bayguzin
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Patent number: 11862814Abstract: A method for producing a microporous material comprising the steps of: providing an ultrahigh molecular weight polyethylene (UHMWPE); providing a filler; providing a processing plasticizer; adding the filler to the UHMWPE in a mixture being in the range of from about 1:9 to about 15:1 filler to UHMWPE by weight; adding the processing plasticizer to the mixture; extruding the mixture to form a sheet from the mixture; calendering the sheet; extracting the processing plasticizer from the sheet to produce a matrix comprising UHMWPE and the filler distributed throughout the matrix; stretching the microporous material in at least one direction to a stretch ratio of at least about 1.5 to produce a stretched microporous matrix; and subsequently calendering the stretched microporous matrix to produce a microporous material which exhibits improved physical and dimensional stability properties over the stretched microporous matrix.Type: GrantFiled: January 21, 2023Date of Patent: January 2, 2024Assignee: Daramic, LLCInventors: Eric H. Miller, Joseph G. Yaritz, Mark T. Demeuse, J. Kevin Whear
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Patent number: 11858196Abstract: Embodiments of the present disclosure describe a magnetic substrate including a cured magnetic ink and a cured polymer resin, wherein the cured magnetic ink includes a plurality of functionalized magnetic iron oxide nanoparticles and wherein the magnetic substrate is a freestanding magnetic substrate.Type: GrantFiled: December 20, 2022Date of Patent: January 2, 2024Assignee: King Abdullah University of Science and TechnologyInventors: Mohammad Vaseem, Farhan Abdul Ghaffar, Atif Shamim
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Patent number: 11858043Abstract: A system for generating a user-adjustable furnace profile, comprises a user interface configured to receive one or more materials properties from a user, a processor, and a memory with computer code instructions stored thereon. The memory is operatively coupled to the processor such that, when executed by the processor, the computer code instructions cause the system to implement communicating with a furnace to ascertain one or more thermal processes associated with the furnace, identifying one or more object characteristics associated with an object to be processed by furnace, and determining a thermal processing parameter profile of at least one thermal processing parameter corresponding to each of the thermal processes, based on (i) the one or more part characteristics and (ii) the one or more materials properties, the thermal processing parameter profile characterizing a cycle of the one or more thermal processes.Type: GrantFiled: January 10, 2022Date of Patent: January 2, 2024Assignee: Desktop Metal, Inc.Inventors: Nihan Tuncer, Brian D. Kernan, Animesh Bose, Mark Sowerbutts
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Patent number: 11858214Abstract: A build chamber for a 3D printer includes a heated build space in an interior of the build chamber and a thermal isolator configured to insulate 3D printer components from the heated build space. The thermal isolator includes a first baffle section and a second baffle section. Each of the first baffle section and the second baffle section includes an accordion-pleated panel having a length, a width, a first end and a second end, wherein the panel comprises a parallel alternating top folds and bottom folds along the width forming a series of pleats, and each pleat within the series being configured to expand and contract, and wherein the panel is constructed of a heat-resistant material. Each baffle section also includes support rods affixed to the accordion-pleated panel in parallel to the pleats and at intervals along the length of the panel, the support rods substantially spanning the width of the panel.Type: GrantFiled: April 2, 2021Date of Patent: January 2, 2024Assignee: Stratasys, Inc.Inventors: Kyra Elizabeth Neal, Colin Adam Schiel, Patrick Williams Anderson, Bryan Daniel Migliori
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Patent number: 11858182Abstract: A press (10) for manufacturing a sandwich panel comprises a first and second press plate (12; 14) that are movable with respect to one another. The press (10) has a fluid circulation loop for heating and cooling the press plates (12; 14). The fluid circulation N loop comprises a heater (22) for generating a hot fluid connected to a fluid supply conduit (24) in fluid communication with an inlet (18) of at least one internal flow channel (16) in each press plate (12; 14) and connected to a fluid return conduit (26) in fluid communication with an outlet (20) of the at least one internal flow channel (16). The fluid circulation loop is also provided with a controlled expansion valve (34) for cooling by conversion of hot pressurized water into steam, and a water source (38) for slow cooling.Type: GrantFiled: December 2, 2019Date of Patent: January 2, 2024Assignee: FITS HOLDING B.V.Inventor: Martin Theodoor De Groot
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Patent number: 11858201Abstract: A method for manufacturing a part made from composite material of a thermoplastic or thermosetting matrix reinforced with fibers includes producing a structure of fibers, that is optionally pre-impregnated. The method further includes aligning and juxtaposing fibers, while stretching them between return elements, and keeping them separated from each other, so as to obtain a first layer. The method includes superimposing, on said first layer, a second layer obtained in an identical manner to the first, in which the fibers are parallel to those of the first layer and kept apart from it. The method includes repeating the superimposing operation until the desired thickness is obtained and stiffening the material making up the matrix (M) by a method that suits its nature.Type: GrantFiled: June 4, 2019Date of Patent: January 2, 2024Assignee: CONSEIL ET TECHNIQUEInventors: Guy Valembois, Nicolas-Jean Fischer, Bertrand Florentz
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Patent number: 11858198Abstract: A method for manufacturing a deflection member is disclosed. The method may include the steps of providing an additive manufacturing apparatus that includes at least one radiation source and a vat containing a photopolymer resin, providing a reinforcing member, contacting a surface of the reinforcing member with the photopolymer resin, and directing radiation from the at least one radiation source towards a surface of the reinforcing member to at least partially cure photopolymer resin in contact with the surface of the reinforcing member to create at least a portion of a lock-on layer.Type: GrantFiled: October 28, 2022Date of Patent: January 2, 2024Assignee: The Procter & Gamble CompanyInventor: John Leslie Brent, Jr.
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Patent number: 11858216Abstract: A fabrication device includes a platform to receive layers of build material for production of a 3-dimensional solid representation of a digital model, a component to deposit layers of build material, and an imagining component to bind respective portions of the build material into cross sections representative of portions of data contained in the digital model. The first imaging component may be a programmable planar light source or a specialized refractive rastering mechanism, or other imaging system. The platform includes an infusion system for providing photocurable resin to the component being built. The object may be a powder composite component using any of a variety of powder materials or a plastic component.Type: GrantFiled: December 13, 2021Date of Patent: January 2, 2024Assignee: TRIO LABS, INC.Inventor: Adam T. C. Steege
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Patent number: 11850797Abstract: A liquefier tube for an additive manufacturing system, the liquefier tube including a body provided with a feed channel including a feeding portion having a first diameter, an outlet portion having a second diameter, the first diameter being larger than the second diameter, a transitional portion interconnecting the feeding portion and the outlet portion. The transitional portion has a monotonically decreasing third diameter from the feeding portion to the outlet portion and the third diameter as function of a longitudinal position of the feed channel in the transitional portion between the feeding portion and the outlet portion and at a transition between the transitional portion and the outlet portion is differentiable. Methods of manufacturing the liquefier tube.Type: GrantFiled: October 2, 2019Date of Patent: December 26, 2023Assignee: BOND HIGH PERFORMANCE 3D TECHNOLOGY B.V.Inventors: Adrianus Bruggeman, Marald Speelman, Klaas Groen, Martijn Johannes Wolbers, Koendert Hendrik Kuit, Antonie Everhard Ekkelenkamp
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Patent number: 11854717Abstract: The present disclosure relates to a method for preparing high-temperature superconducting yttrium barium copper oxide (YBCO) wire by 3D-printing, this method is divided into the following four steps: firstly, preparing a nano-level superconducting powder precursor; and then, preparing a printing paste with suitable viscosity and supporting characteristics; after that, using a CAD 3D modeling, exporting STL format model data and slicing by a professional software; implementing one-step preparing strands with low AC loss by twisting the print nozzle. Finally, the printed twisted wire is formed into a practical superconducting twisted cable through the processes such as plastic removal process, crystallizing process, oxygen supplementing process and assembling process in order. The present disclosure firstly provides an application for applying high temperature superconducting material to direct ink writing 3D-printing technology.Type: GrantFiled: September 15, 2020Date of Patent: December 26, 2023Assignee: LANZHOU UNIVERSITYInventors: Xingyi Zhang, Baoqiang Zhang, Qiangqiang Zhang, Cong Liu, Huadong Yong, Youhe Zhou
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Patent number: 11850801Abstract: A three-dimensional shaping apparatus includes a plasticizing portion plasticizing a material to generate a shaping material, a nozzle having a discharge port discharging the shaping material toward a table, a movement mechanism changing a relative position between the nozzle and the table, a discharge control mechanism provided in a flow path which connects the plasticizing portion to the nozzle and controlling a discharge amount of the shaping material from the nozzle, and a control portion controlling the plasticizing portion, the movement mechanism, and the discharge control mechanism to shape the three-dimensional shaping object.Type: GrantFiled: July 18, 2022Date of Patent: December 26, 2023Inventors: Kohei Yuwaki, Satoshi Yamazaki
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Patent number: 11845221Abstract: Disclosed are selective deposition-based additive manufacturing systems (10) and methods for printing a 3D part (26). Layers of a powder material (22) are developed using one or more electrostatographic engines (12a-d). The layers (22) are transferred for deposition on a part build surface (88). For each of the layers (22), the part build surface (88) is pre-heated by impinging a first heat transfer liquid (74) toward the part build surface (88), for example using a solder fountain. The developed layer (22) is pressed into contact with the heated part build surface (88) to heat the developed layer (22) to a flowable state and form a new part build surface (88) which is fully consolidated. The new part build surface (88) is then rapidly cooled to remove the heat energy added during heating step before repeating the steps for the next developed layer (22).Type: GrantFiled: February 1, 2019Date of Patent: December 19, 2023Assignee: Evolve Additive Solutions, Inc.Inventor: J. Samuel Batchelder
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Patent number: 11833749Abstract: The present invention relates to a method for producing a treated object, comprising the steps of: applying a layer of particles to a target area; applying a liquid binder to a selected portion of the layer in accordance with a cross-section of the object, so that the particles in the selected portion are bonded; repeating the steps of applying a layer of particles and applying a binder for a plurality of layers so that the bonded portions of the adjacent layers are bonded to form an object, wherein at least a part of the particles comprises a meltable polymer. A binder which cures by cross-linking is preferably selected as the binder. The obtained object is at least partially contacted with a liquid heated to ?T or with a powder bed heated to ?T in order to obtain the treated object. T represents a temperature of ?25° C.Type: GrantFiled: December 18, 2018Date of Patent: December 5, 2023Assignee: STRATASYS, INC.Inventors: Dirk Achten, Thomas Buesgen, Roland Wagner, Jonas Kuenzel, Michael Kessler, Bettina Mettmann