Patents by Inventor David Dean

David Dean 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: 12527666
    Abstract: Systems and methods are disclosed to manufacture a custom repair or replacement part at the location in which the repair/replacement will be performed. Scans are performed to determine a wear pattern and topology of the location where the replacement part is to be placed and manufacturing instructions are generated to manufacture the repair part using localized manufacturing techniques according to customized parameters to meet functional requirements of the repair/replacement.
    Type: Grant
    Filed: August 9, 2021
    Date of Patent: January 20, 2026
    Assignee: Ohio State Innovation Foundation
    Inventors: David Dean, Glenn Daehn, Michael Groeber, Stephen Niezgoda
  • Patent number: 12486412
    Abstract: Provided herein are polyesters that comprise (i) monomer units derived from sugar-based bicyclic diol; (ii) monomer units derived from an unsaturated aliphatic diacid; and (iii) monomer units derived from a saturated aliphatic diacid. The monomer units derived from the ethylenically unsaturated aliphatic diacid can be present in an amount of from greater than 0 mole % to 40 mole % of the polyester. These polyesters can be formed into articles using additive manufacturing methods. The resulting articles can be biocompatible, resorbable over a span of from 3 months to 12 months following implantation in the human body, and can exhibit desirable mechanical properties for applications, including porosity and elasticity.
    Type: Grant
    Filed: October 25, 2019
    Date of Patent: December 2, 2025
    Assignees: Ohio State Innovation Foundation, University of Sao Paulo
    Inventors: David Dean, Luiz Henrique Catalani
  • Patent number: 12448067
    Abstract: A rubber caterpillar track (1) has an interior surface (5) intended to collaborate with drive means, and a tread (2) comprising a tread pattern (21) formed of N relief elements made of an elastomeric material which are intended to come into contact with the ground in order to give the caterpillar track (1) traction, each element of the tread pattern (21) comprising a leading face (212) intended to transmit force, characterized in that: a. the leading face of n tread pattern elements, the number n being at least equal to 0.2×N, is inclined with respect to a direction (OZ) normal to the bearing surface by an angle ? comprised between 45 degrees and 75 degrees; and b. the tread is notably made of an elastomeric material of which the shore A hardness, measured in accordance with the standard ASTM D2240, is greater than or equal to 65.
    Type: Grant
    Filed: November 24, 2020
    Date of Patent: October 21, 2025
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frederic Perrin, David Dean, Maxime Pras
  • Publication number: 20250296278
    Abstract: Disclosed are methods for preparing non-filamentous scaffolds (e.g., sheets) for cell or tissue culture. These methods can comprise providing at least a first printing composition (e.g., a bioink) and a second printing composition (e.g., a bioink or a fugitive ink); chaotic printing the first printing composition and the second printing composition to generate a microstructured precursor comprising a plurality of lamellar structures formed from the first printing composition and the second printing composition; extruding the microstructured precursor through a nozzle (e.g., a fan-shaped nozzle, a curved fan-shaped nozzle, or an annular nozzle) to produce a non-filamentous microstructured precursor; and curing the non-filamentous microstructured precursor to provide the non-filamentous scaffold for cell or tissue culture.
    Type: Application
    Filed: May 1, 2023
    Publication date: September 25, 2025
    Inventor: David DEAN
  • Publication number: 20250296279
    Abstract: A melt electrowriting (MEW) system includes an MEW device configured to print a material on a collector. The MEW device includes a print head configured to melt and extrude the material out from an extruder. The extruder is exchangeable depending on a surface profile of the collector. The MEW device includes a positioning system configured to coordinate movements of the collector relative to the print head. The MEW system is configured to print the material with at least four mechanical degrees of freedom and up to six mechanical degrees of freedom.
    Type: Application
    Filed: May 5, 2023
    Publication date: September 25, 2025
    Inventors: David Dean, Ciro Angel Rodriguez Gonzalez, Javier Oswaldo Vazquez Armendariz, Raquel Tejeda Alejandre
  • Publication number: 20250297226
    Abstract: Provided herein are methods for preparing perfusable scaffolds for cell culture. These methods can comprise providing a bioink composition and a fugitive ink composition; chaotic printing the bioink composition and the fugitive ink composition to generate a microstructured precursor comprising a plurality of lamellar structures formed from the bioink composition; curing the bioink composition to form a cured scaffold precursor; and removing the fugitive ink from the cured scaffold precursor, thereby forming the perfusable scaffold. In some embodiments, the fugitive ink comprises hydroxyethyl cellulose (HEC). In some embodiments, the the bioink composition and the fugitive ink composition are chaotically printed into a housing comprising a fluid inlet, a fluid outlet, and a path for fluid flow from the fluid inlet to the to generate a microstructured precursor occupying the path for fluid flow. Also provided are scaffolds prepared by these methods as well as modular bioreactors incorporating these scaffolds.
    Type: Application
    Filed: May 1, 2023
    Publication date: September 25, 2025
    Inventors: David DEAN, Ryan HOOPER, Grissel TRUJILLO DE SANTIAGO, Mario Moisés ALVAREZ, Ciro RODRIGUEZ
  • Publication number: 20250101635
    Abstract: Disclosed herein is an apparatus for fabricating a branching structure, the apparatus comprising: a flexible, electrically conductive internal electrical field collector comprising a first collector end, a second collector end, a collector outer surface located between both collector ends, a collector longitudinal axis extending through the first collector end and the second collector end, and at least one articulating feature positioned between the first collector end and the second collector end, a compression and rotation mechanism in contact with the first collector end, and a continuously formed mandrel that can include branches,, having a first mandrel circumference with a mandrel inner circumference larger than the collector outer circumference and positionable over the internal electrical field collector and a second mandrel located at sufficient distance outside the first mandrel to facilitate attraction of electruspun fibers.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 27, 2025
    Inventors: Raquel TEJEDA-ALEJANDRE, Hernan LARA-PADILLA, Ciro A. RODRIGUEZ, David DEAN
  • Patent number: 12246113
    Abstract: The present disclosure describes additive manufacturing methods, in particular methods for optimizing the manufacture of objects by three-dimensional printing processes. Also provided are bioreactors as well as methods of using thereof.
    Type: Grant
    Filed: August 7, 2019
    Date of Patent: March 11, 2025
    Assignee: Ohio State Innovation Foundation
    Inventors: Hernan Lara Padilla, David Dean, Ciro Rodriguez
  • Patent number: 12208851
    Abstract: A bicycle light that is constructed and arranged to be supplied with input electrical power. The power can be supplied by multiple power sources, or not. When there are multiple power sources, the bicycle light includes a circuit that is adapted to deliver power to the light source from any of the power sources. The bicycle light can have an electrical power output, and a circuit that is adapted to deliver power to the light source and the power output.
    Type: Grant
    Filed: August 8, 2022
    Date of Patent: January 28, 2025
    Assignee: Sinewave Inc.
    Inventor: David Dean
  • Patent number: 12188156
    Abstract: Disclosed herein is an apparatus for fabricating a branching structure, the apparatus comprising: a flexible, electrically conductive internal electrical field collector comprising a first collector end, a second collector end, a collector outer surface located between both collector ends, a collector longitudinal axis extending through the first collector end and the second collector end, and at least one articulating feature positioned between the first collector end and the second collector end, a compression and rotation mechanism in contact with the first collector end, and a continuously formed mandrel that can include branches, having a first mandrel circumference with a mandrel inner circumference larger than the collector outer circumference and positionable over the internal electrical field collector and a second mandrel located at sufficient distance outside the first mandrel to facilitate attraction of electruspun fibers.
    Type: Grant
    Filed: March 15, 2018
    Date of Patent: January 7, 2025
    Assignees: INSTITUTO TECNOLOGICO Y DE ESTUDIOS SUPERIORES DE MONTERREY, OHIO STATE INNOVATION FOUNDATION
    Inventors: Raquel Tejeda-Alejandre, Hernan Lara-Padilla, Ciro A. Rodriguez, David Dean
  • Patent number: 12145406
    Abstract: A tire for an agricultural vehicle, having a tread made of rubbery material and two axially outer zones delimiting the tread, each having a shoulder and a sidewall and designed to mechanically connect the tread to a rim. The tire has a plurality of blocks distributed in a circumferential direction (X), each block having a length L, measured in the circumferential direction (X) from a lateral face of the block, and a height H, where L is greater than H. Each block has a cavity that opens onto the lateral face, forming an opening in the lateral face. The cavity has a depth p and an opening width l. The blocks are present in at least one of the two axially outer zones, but not in the tread. The blocks are present at the shoulder in the continuation of the tread.
    Type: Grant
    Filed: March 26, 2020
    Date of Patent: November 19, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Frédéric Perrin, David Dean, Johan Ferri
  • Publication number: 20240354057
    Abstract: Techniques and mechanisms for circuitry to support the performance of a fused multiply-add (FMA) operation with one or more denormal numbers. In some embodiments, a processor is operable to execute a FMA instruction comprising or otherwise identifying two multiplicands, and an addend. Such execution includes performing one-way alignment of an addend significand based on a difference between respective exponent values of the two multiplicands. The alignment is performed in parallel with operations by a multiplier circuit based on respective significand values of the two multiplicands. Subtraction of a J-bit correction value is performed in the multiplier circuit to avoid mitigate execution delay. In another embodiment, first circuitry of a processor executes an FMA instruction, wherein components of the first circuitry are shared with second circuitry of the processor, and wherein the second circuitry supports the execution of a floating-point multiplication instruction.
    Type: Application
    Filed: November 29, 2023
    Publication date: October 24, 2024
    Applicant: Intel Corporation
    Inventors: Jongwook Sohn, David Dean, Eric Quintana, Wing Shek Wong
  • Patent number: 12090790
    Abstract: Tire (1) having a sub-layer (7) made up substantially of a base layer (71) disposed radially on the crown reinforcement (5) and axially between the median plane (CP) and a shoulder (60), said base layer (71) being made up of a rubber compound of given stiffness A, a covering layer (72) disposed radially on the base layer (71) and radially on the inside of the tread (6) and axially at least in sections situated between the median plane (CP) and the shoulder end (721), said covering layer (72) being made up of a rubber compound of given stiffness B, the stiffness A being less than the stiffness B, and the stiffness B being greater than the stiffness M.
    Type: Grant
    Filed: January 18, 2019
    Date of Patent: September 17, 2024
    Assignee: COMPAGNIE GENERALE DES ETABLISSEMENTS MICHELIN
    Inventors: Pascal Prost, Christopher Careme, David Dean
  • Patent number: 12044201
    Abstract: An energy storage and electricity generating system for alternately storing energy and producing electricity includes a framework, which is positionable proximate to a surface of a body of water and to which a motor and a turbine are attached. A cable is operationally engaged to the motor by a pair of guide pulleys. A pair of tanks is attached singly to opposed ends of the cable, positioning the motor to selectively raise one of the tanks while the other is being lowered. Actuated valves and release valves on the tanks allow pressurized air to be selectively generated within the tanks and pressurized water to be forced from the tanks, respectively, as the tanks are lowered and raised. The water is forced through a hose onto blades of the turbine to generate an electrical current.
    Type: Grant
    Filed: April 12, 2023
    Date of Patent: July 23, 2024
    Inventors: David Dean, Steven Dean
  • Patent number: 11900947
    Abstract: Embodiments of the present invention provide methods and systems for performing automatic diarisation of sound recordings including speech from one more speakers. The automatic diarisation has a development or training phase and a utilisation or evaluation phase. In the development or training phase background models and hyperparameters are generated from already annotated sound recordings. These models and hyperparameters are applied during the evaluation or utilisation phase to diarise new or not previously diarised or annotated recordings.
    Type: Grant
    Filed: February 24, 2021
    Date of Patent: February 13, 2024
    Assignee: FTR LABS PTY LTD
    Inventors: Houman Ghaemmaghami, Shahram Kalantari, David Dean, Subramanian Sridharan
  • Publication number: 20230380413
    Abstract: A method of treating a harvested organ or tissue for preservation for implantation into a patient has the steps of, harvesting an organ or tissue from a donor; placing the harvested organ or tissue into a container; filling the container with a fluid for preservation; sealing the container once filled; directing one or more sound wave treatments into the container to destroy bacteria or molds or fungi or virus and to stimulate the organ or tissue; and storing the container at a hypothermic temperature of about 4 degrees C. for storage prior to implantation.
    Type: Application
    Filed: May 26, 2022
    Publication date: November 30, 2023
    Inventors: John F. Warlick, John Mullins, David Dean
  • Publication number: 20230301791
    Abstract: Systems and methods are disclosed to manufacture a custom repair or replacement part at the location in which the repair/replacement will be performed. Scans are performed to determine a wear pattern and topology of the location where the replacement part is to be placed and manufacturing instructions are generated to manufacture the repair part using localized manufacturing techniques according to customized parameters to meet functional requirements of the repair/replacement.
    Type: Application
    Filed: August 9, 2021
    Publication date: September 28, 2023
    Inventors: David Dean, Glenn Daehn, Michael Groeber, Stephen Niezgoda
  • Publication number: 20230241925
    Abstract: A tire for an agricultural vehicle, and in particular its tread, which aims to increase its traction capability in the field on loose ground. The tire having a nominal section width L, a central tread portion (211), centred on an equatorial plane (E) of the tire and having an axial width L1 at least equal to 0.15*L and at most equal to 0.35*L, has circumferentially distributed tread pattern elements (221), which are separated in pairs by transverse voids (231) forming an angle at least equal to 30° with the circumferential direction (XX?), and the central tread portion (211) has a local volumetric void ratio TEVL1, defined as being the ratio between the volume VC1 of the transverse voids (231) and the total volume V1 of the central tread portion (21), between the bearing surface (24) and the tread surface (25), is at most equal to 15%.
    Type: Application
    Filed: July 5, 2021
    Publication date: August 3, 2023
    Inventors: Frédéric PERRIN, David DEAN, Jean-Michel VACHERAND, Maxime PRAS
  • Publication number: 20230051293
    Abstract: A rubber caterpillar track (1) has an interior surface (5) intended to collaborate with drive means, and a tread (2) comprising a tread pattern (21) formed of N relief elements made of an elastomeric material which are intended to come into contact with the ground in order to give the caterpillar track (1) traction, each element of the tread pattern (21) comprising a leading face (212) intended to transmit force, characterized in that: a. the leading face of n tread pattern elements, the number n being at least equal to 0.2×N, is inclined with respect to a direction (OZ) normal to the bearing surface by an angle ? comprised between 45 degrees and 75 degrees; and b. the tread is notably made of an elastomeric material of which the shore A hardness, measured in accordance with the standard ASTM D2240, is greater than or equal to 65.
    Type: Application
    Filed: November 24, 2020
    Publication date: February 16, 2023
    Inventors: FREDERIC PERRIN, DAVID DEAN, MAXIME PRAS
  • Publication number: 20220379988
    Abstract: A bicycle light that is constructed and arranged to be supplied with input electrical power. The power can be supplied by multiple power sources, or not. When there are multiple power sources, the bicycle light includes a circuit that is adapted to deliver power to the light source from any of the power sources. The bicycle light can have an electrical power output, and a circuit that is adapted to deliver power to the light source and the power output.
    Type: Application
    Filed: August 8, 2022
    Publication date: December 1, 2022
    Inventor: David Dean