Patents by Inventor Christopher M. Hoffman
Christopher M. Hoffman 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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Patent number: 12083766Abstract: Methods of forming a composite structure include conforming at least one ply of material to a forming surface of a tool having differing features. Apparatuses for forming a composite structure include a forming tool and a material feed assembly configured to hold a supply of material, where the material feed assembly may be configured to pivot the supply of material relative to the forming tool. Composite structures having an at least partially annular shape are formed by an at least partially automated process.Type: GrantFiled: May 17, 2021Date of Patent: September 10, 2024Assignee: Northrop Grumman Systems CorporationInventors: Christopher J. Madsen, John B. Healey, Travis S. Olsen, Ethan J. Hoffman, Jason H. Stulp, Michael T. Tueller, Wayne M. Roeber, Vernon M. Benson
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Patent number: 11993209Abstract: A multi-camera vision system is utilized onboard a work vehicle having an operator cabin and an apparatus associated with performance of a work task. The system includes: one or more display devices defining a plurality of display areas and a plurality of cameras carried by the work vehicle and coupled to display feeds at the display areas. A first camera of the cameras is oriented to selectively provide a first selected feed of at least a portion of the apparatus during performance of the work task. A controller is configured to display the first selected feed of the selected feeds with an insert, overlay, or icon that indicates the origin and orientation of the first camera as the first selected feed depicts performance of the work task by the apparatus.Type: GrantFiled: February 16, 2022Date of Patent: May 28, 2024Assignees: DEERE & COMPANY, IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.Inventors: Brian M. Huenink, Jeremy B. Shuler, Jake Flanders, Christopher M. Hoffman
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Patent number: 11932970Abstract: A nanofiber comprising a polyamide including at least one substituted phenyl group is provided. The nanofiber includes an average diameter from about 50 to about 1000 nm. A fibrous mat including a plurality of the nanofibers is also provided. A composite including a plurality of the nanofibers and a continuous matrix resin is also provided. A method of forming the nanofibers is also provided.Type: GrantFiled: August 28, 2019Date of Patent: March 19, 2024Inventors: Christopher M. Hoffman, Jr., Matthew P. Yeager, Morgana M. Trexler, Zhiyong Xia, Douglas A. Smith, Marcia W. Patchan
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Patent number: 11918977Abstract: Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.Type: GrantFiled: August 22, 2022Date of Patent: March 5, 2024Assignee: The Johns Hopkins UniversityInventors: Christopher M. Hoffman, Jr., Zhiyong Xia, James K. Johnson
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Patent number: 11817553Abstract: A gel polymer electrolyte (GPE) composition and a method of forming the same are provided. The GPE includes a polymer network and an electrolyte composition comprising a deep eutectic solvent (DES) having a eutectic point of less than or equal to 25° C. An electrochemical cell including a GPE and a method of forming the same are also provided.Type: GrantFiled: September 4, 2019Date of Patent: November 14, 2023Assignee: The Johns Hopkins UniversityInventors: Konstantinos Gerasopoulos, Christopher M. Hoffman, Jr., Adam W. Freeman, Matthew W. Logan, Spencer A. Langevin
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Publication number: 20230097635Abstract: A microcapsule for use with an underwater adhesive includes a shell including nanoclay platelets and a polyurea product of an interfacial polymerization of a polyamine and an aromatic polyisocyanate. The microcapsule further includes a core composition encapsulated by the shell. The core composition includes a base catalyst for formation of a polyurethane, a polyol, and a hydrophilic solvent.Type: ApplicationFiled: September 28, 2022Publication date: March 30, 2023Inventors: Christopher M. Hoffman, Jr., Brian M. Koronkiewicz, Reid E. Messersmith, Mairead E. Bartlett
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Publication number: 20230027521Abstract: Contaminant-sequestering coatings include a network of hydrolyzed silane compounds including (i) a plurality of fluorinated functionalities, and (ii) a plurality of thiol functional groups are provided. The network of hydrolyzed silane compounds includes a fluorinated silane including (a) a hydrophilic polar head region. The polar head region includes one or multiple units of ethylene glycol (EG) functionality, (b) a fluorine-containing region, and (c) an anchor region including a silicon atom. The contaminant-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species, or any combination thereof.Type: ApplicationFiled: August 22, 2022Publication date: January 26, 2023Inventors: Christopher M. Hoffman, JR., Zhiyong Xia, James K. Johnson
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Publication number: 20230001378Abstract: Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.Type: ApplicationFiled: August 22, 2022Publication date: January 5, 2023Inventors: Christopher M. Hoffman, Jr., Zhiyong Xia, James K. Johnson
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Publication number: 20220332975Abstract: Coating compositions include a binder that has a first polymeric material that does not undergo ultraviolet (UV) degradation and/or does not absorb UV radiation/light. The coating compositions may further include at least a first UV-reflective pigment dispersed throughout the binder. The coating compositions may be provided in a cured form as a solid coating layer that may overly at least a portion of a substrate.Type: ApplicationFiled: May 18, 2022Publication date: October 20, 2022Inventors: Jason J. Benkoski, Rengaswamy Srinivasan, Christopher M. Hoffman, JR., Keith S. Caruso
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Publication number: 20220306000Abstract: A multi-camera vision system is utilized onboard a work vehicle having an operator cabin and an apparatus associated with performance of a work task. The system includes: one or more display devices defining a plurality of display areas and a plurality of cameras carried by the work vehicle and coupled to display feeds at the display areas. A first camera of the cameras is oriented to selectively provide a first selected feed of at least a portion of the apparatus during performance of the work task. A controller is configured to display the first selected feed of the selected feeds with an insert, overlay, or icon that indicates the origin and orientation of the first camera as the first selected feed depicts performance of the work task by the apparatus.Type: ApplicationFiled: February 16, 2022Publication date: September 29, 2022Inventors: Brian M. Huenink, Jeremy B. Shuler, Jake Flanders, Christopher M. Hoffman
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Patent number: 11452987Abstract: Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.Type: GrantFiled: June 19, 2019Date of Patent: September 27, 2022Assignee: The Johns Hopkins UniversityInventors: Christopher M. Hoffman, Jr., Zhiyong Xia, James K. Johnson
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Patent number: 11447659Abstract: Coating compositions include a binder that has a first polymeric material that does not undergo ultraviolet (UV) degradation and/or does not absorb UV radiation/light. The coating compositions may further include at least a first UV-reflective pigment dispersed throughout the binder. The coating compositions may be provided in a cured form as a solid coating layer that may overly at least a portion of a substrate.Type: GrantFiled: March 3, 2020Date of Patent: September 20, 2022Assignee: The Johns Hopkins UniversityInventors: Jason J. Benkoski, Rengaswamy Srinivasan, Christopher M. Hoffman, Jr., Keith S. Caruso
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Patent number: 11387488Abstract: Gel polymer electrolyte compositions including a cross-linked three-dimensional polymer network and an electrolyte composition comprising an electrolyte and water are provided. The gel polymer electrolyte compositions can be included in an aqueous electrochemical cell, in which a gel polymer electrolyte can be positioned between an anode and a cathode. Methods of forming a gel polymer electrolyte in the form of a film are also provided. Methods of forming an aqueous electrochemical cell including a gel polymer electrolyte are also provided.Type: GrantFiled: August 3, 2018Date of Patent: July 12, 2022Assignee: The Johns Hopkins UniversityInventors: Konstantinos Gerasopoulos, Adam W. Freeman, Christopher M. Hoffman, Jr.
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Patent number: 11248125Abstract: A coating system may be configured to be applied to an aluminum-magnesium substrate of an object. The coating system may include a primer configured to reduce the corrosion rate of the aluminum-magnesium substrate and a topcoat configured to resist water and improve solar reflectance of the coating system. The primer may include a silicate and a first additive configured to increase corrosion resistance of the coating system The topcoat may include a siloxane and a second additive configured to reduce solar absorptance of the coating system.Type: GrantFiled: March 29, 2018Date of Patent: February 15, 2022Assignee: The Johns Hopkins UniversityInventors: Jason J. Benkoski, Christopher M. Hoffman, Jr., Rengaswamy Srinivasan, Keith S. Caruso
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Patent number: 11203694Abstract: An anti-fouling coating comprising a polymeric compound, wherein a backbone of the polymeric compound is covalently bonded to a quorum sensing inhibitor, and wherein the anti-fouling coating has substantially no bactericidal activity, the quorum sensing inhibitor is substantially non-leaching from the anti-fouling coating, or both.Type: GrantFiled: August 20, 2019Date of Patent: December 21, 2021Assignee: The Johns Hopkins UniversityInventors: Christopher M. Hoffman, Jr., Adam W. Freeman, Konstantinos Gerasopoulos, James K. Johnson, Felix C. Sage, Spencer A. Langevin, Reid E. Messersmith
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Publication number: 20210277278Abstract: Coating compositions include a binder that has a first polymeric material that does not undergo ultraviolet (UV) degradation and/or does not absorb UV radiation/light. The coating compositions may further include at least a first UV-reflective pigment dispersed throughout the binder. The coating compositions may be provided in a cured form as a solid coating layer that may overly at least a portion of a substrate.Type: ApplicationFiled: March 3, 2020Publication date: September 9, 2021Inventors: Jason J. Benkoski, Rengaswamy Srinivasan, Christopher M. Hoffman, Jr., Keith S. Caruso
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Publication number: 20200398249Abstract: Contaminate-sequestering coatings including a network of hydrolyzed silane compounds including a plurality of thiol functional groups, a plurality of fluorinated functionalities, or both are provided. The contaminate-sequestering coatings may sequester one or more per- and polyfluoroalkyl substances (PFAS), heavy metals, biological species or any combination thereof. Methods of functionalizing a substrate surface with contaminate-sequestering functionalities that sequester one or more PFAS, heavy metals, or both are also provided. Methods of removing contaminants from contaminate-containing liquids, and devices including the contaminate-sequestering coatings are also provided.Type: ApplicationFiled: June 19, 2019Publication date: December 24, 2020Inventors: Christopher M. Hoffman, JR., Zhiyong Xia, James K. Johnson
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Publication number: 20200343586Abstract: A gel polymer electrolyte (GPE) composition and a method of forming the same are provided. The GPE includes a polymer network and an electrolyte composition comprising a deep eutectic solvent (DES) having a eutectic point of less than or equal to 25° C. An electrochemical cell including a GPE and a method of forming the same are also provided.Type: ApplicationFiled: September 4, 2019Publication date: October 29, 2020Inventors: Konstantinos Gerasopoulos, Christopher M. Hoffman, JR., Adam W. Freeman, Matthew W. Logan, Spencer A. Langevin
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Patent number: 10801131Abstract: Example methods and articles of manufacture related to electrospun aramid nanofibers are provided. One example method may include forming a resultant solution by reacting a solution of aramids dissolved in a solvent with an electrophile. In this regard, the electrophile may perform a side chain substitution on the dissolved aramids. The example method may further include electrospinning the resultant solution to form an aramid nanofiber.Type: GrantFiled: March 24, 2017Date of Patent: October 13, 2020Assignee: The Johns Hopkins UniversityInventors: Matthew P. Yeager, Christopher M. Hoffman, Jr., Morgana M. Trexler, Zhiyong Xia
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Publication number: 20200248008Abstract: An anti-fouling coating comprising a polymeric compound, wherein a backbone of the polymeric compound is covalently bonded to a quorum sensing inhibitor, and wherein the anti-fouling coating has substantially no bactericidal activity, the quorum sensing inhibitor is substantially non-leaching from the anti-fouling coating, or both.Type: ApplicationFiled: August 20, 2019Publication date: August 6, 2020Inventors: Christopher M. Hoffman, Adam W. Freeman, Kostantinos Gerasopoulos, James K. Johnson, Felix C. Sage, Spencer A. Langevin, Reid E. Messersmith