Patents Assigned to Iowa State University Research
  • Patent number: 11984243
    Abstract: Permanent magnet materials are provided. The permanent magnet materials are cerium based materials including zirconium and iron in combination with cobalt. The permanent magnet materials may have the formula Ce2ZrFe15?xCox wherein 6?x?15. In some embodiments, the permanent magnet materials have the formula Ce2+yZr1?yFe(15?x)(2?z)/2)CoxCu((15?x)z/2) wherein 6?x?15, 0?y?0.4, and z=0 or 1. In other embodiments, the permanent magnet materials have the formula Ce2Zrx(Fe1?yCoy)17?2x, where 0<x?1 and 0.4?y?1. Permanent magnets including the permanent magnet materials are also provided.
    Type: Grant
    Filed: March 3, 2022
    Date of Patent: May 14, 2024
    Assignees: UT-BATTELLE, LLC, Iowa State University Research Foundation, Inc.
    Inventors: David S. Parker, Tribhuwan Pandey, Cajetan Ikenna Nlebedim, Xubo Liu
  • Patent number: 11982086
    Abstract: Ultra-High-Performance Concrete (UHPC), owing to its superior mechanical and durability properties, presents a unique opportunity for innovative use in unbonded post-tensioned floor systems. In unbonded post-tensioned (PT) slabs and beams, the use of cast-in-place steel confined UHPC Bond Anchors (UBA) can be used to anchor steel prestressing strands for better durability, increased strand ductility, cost-effectiveness, and ease of installation. A conical, steel confining device is used as part of the UBA. The device resists hoop tension and eliminates splitting cracks in the UHPC during prestress transfer. It also helps to reduce the anchorage length. High average bond stress helps reduce the UBA length, and consequently, the material consumption. The bond stress at the strand-UHPC interface can be increased by intentionally roughening or indenting the strand.
    Type: Grant
    Filed: December 16, 2020
    Date of Patent: May 14, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Sivalingam Sritharan, Satish Hansmukhlal Jain
  • Patent number: 11980181
    Abstract: One or more techniques and/or systems are disclosed for a center frame positioning method for an agricultural sprayer. The method comprises activating a center frame positioning system and collecting and processing position data related to a position of a suspended center frame in the center frame positioning system. The method further comprises evaluating the position data to determine whether any adjustment to the position of the suspended center frame is needed and controlling actuator force in at least one actuator to adjust the position of the suspended center frame based on the evaluating the position data.
    Type: Grant
    Filed: February 18, 2021
    Date of Patent: May 14, 2024
    Assignees: Deere & Company, Iowa State University Research Foundation, Inc.
    Inventors: Adam D. Sporrer, Kyle R. Blaylock, Matthew J. Darr, Robert McNaull, Kevin L. Ehrecke
  • Patent number: 11976169
    Abstract: The present invention relates to a polymer comprising a repeating group having the structure of formula (I) wherein R, R1, R2, R3, R4, X, and s are as described herein and salt thereof. Also disclosed is a process of synthesizing such polymers.
    Type: Grant
    Filed: June 15, 2022
    Date of Patent: May 7, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Nacu Hernandez, Mengguo Yan, Eric William Cochran, John Edward Matthiesen, Jean-Philippe Tessonnier
  • Publication number: 20240140886
    Abstract: The disclosure provides a method of dehydrogenating hydrocarbons, such as C2 or C3 hydrocarbons, selectively and efficiently, to provide the corresponding alkylenes. The method is based on a Pt nanolayer catalyst over MXene (Pt/MXene) that shows resistance to coke deposition. The dehydrogenation conditions developed provided about 22% propane conversion and over 90% selectivity toward the desired propylene product, and the catalyst was stable for a 24-hour continuous run. The byproducts were ethane, ethylene, and methane, and only trace amounts of coke deposition over the catalyst were detected. Similar dehydrogenation conditions provided about 18% ethane conversion and over 90% selectivity toward the desired ethylene product. A mass balance of greater than 96% was achieved in each case.
    Type: Application
    Filed: October 16, 2023
    Publication date: May 2, 2024
    Applicants: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC., PURDUE RESEARCH FOUNDATION
    Inventors: Yue WU, Zhe LI, Fan YANG, Yang XIAO
  • Patent number: 11971383
    Abstract: The invention relates to a method of patterning a substrate with graphene-based or other electroactive-material-based solution that includes solid-phase particles as hard templates, reducing the solution, and processing the reduced solution to expose the particles. The exposed hard template particles are removed to leave a three-dimensional (3D) porous architecture that can be beneficially used for a variety of applications, including but not limited to bio sensors and supercapacitors. In one example, the exposure is by etching with a CO2 laser. The method can be practiced with scalable MEMS fabrication technologies.
    Type: Grant
    Filed: November 20, 2019
    Date of Patent: April 30, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Jonathan Claussen, John Hondred
  • Patent number: 11964884
    Abstract: The present application relates to a system for removal of nitrate from water. The system includes a first reactor comprising a porous oxide-derived silver electrode (OD-Ag) for electrocatalytic reduction of nitrate (NO3?) to nitrite (NO2?) and a second reactor comprising a Pd-based catalyst for catalytic reduction of nitrite (NO2?). Also disclosed is a method of removing nitrate from water.
    Type: Grant
    Filed: March 8, 2021
    Date of Patent: April 23, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Wenzhen Li, Hengzhou Liu, Yifu Chen
  • Patent number: 11958974
    Abstract: The present invention relates to an asphalt product. The asphalt product includes an asphalt binder and a bio-oil blend comprising a mixture of a non-hydrogenated bio-oil and a partially hydrogenated bio-oil, where the bio-oil blend is mixed with the asphalt binder to form an asphalt product having a shear stiffness of 0.20 kPa to 11,000 kPa at a temperature ranging from 25° C. to 85° C. and/or a viscosity of 0.15 Pa·s to 1.50 Pa·s at a temperature ranging from 120° C. to 165° C. The present invention further relates to methods of producing an asphalt product and methods of applying an asphalt product to a surface.
    Type: Grant
    Filed: January 4, 2021
    Date of Patent: April 16, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Ronald Christopher Williams, Joseph Herbert Podolsky, Nacu Hernandez, Eric W. Cochran
  • Patent number: 11959811
    Abstract: A temperature sensor including a sapphire optical fiber and a nanoporous cladding layer covering at least a portion of the sapphire optical fiber.
    Type: Grant
    Filed: December 20, 2019
    Date of Patent: April 16, 2024
    Assignees: SSAB Enterprises, LLC, Iowa State University Research Foundation, Inc.
    Inventors: Meng Lu, Jingjing Qian, Sunday O. Abraham, Randy Petty, Matthew J. Werner
  • Publication number: 20240116110
    Abstract: A micro-alloyed copper powder was produced using gas atomization reaction synthesis, with the alloy preferably comprising Cu-0.3Zr-0.15Ag wt. %. The novel copper alloy improves the manufacturability of copper in powder bed fusion manufacturing processes by minimizing or avoiding the prior art problems associated with oxidation of the copper precursor used in additive manufacturing. Advantageously, the provided copper alloy powder maintains the high electrical conductivity of copper while addressing the prior art oxidation issue.
    Type: Application
    Filed: December 15, 2022
    Publication date: April 11, 2024
    Applicant: Iowa State University Research Foundation, Inc.
    Inventors: Christian Gentry Miles Barr, Timothy Prost
  • Patent number: 11945953
    Abstract: The present invention relates to an asphalt product that comprises an asphalt component and a plurality of pellets comprising a mixture of a ground tire rubber and an elastomeric polymer, where the density difference between the asphalt component and the plurality of pellets is less than 10%. The present invention further relates to a pellet comprising a ground tire rubber (“GTR”) and an elastomeric polymer mixed with the GTR, where the GTR has a density of less than 1.12 g/cm3. Also disclosed are methods of producing improved asphalt and paving a surface.
    Type: Grant
    Filed: May 25, 2023
    Date of Patent: April 2, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Nacu Hernandez, Ronald Christopher Williams
  • Patent number: 11947195
    Abstract: Various embodiments disclosed relate to contact lens including nanopores. A contact lens can include a nanoporous film including nanopores that are on an inner surface of the contact lens, and a backing lens on the nanoporous film. Various embodiments further include a biomarker-sensing region of the nanoporous film, a drug storage and delivery region of the nanoporous film, or a combination thereof.
    Type: Grant
    Filed: November 20, 2018
    Date of Patent: April 2, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Long Que, Gil Ben-Shlomo, Chao Song
  • Patent number: 11938535
    Abstract: Textured particles and methods of making the same. A textured particle includes an inner core and a spherical solid outer shell including an outer surface. The inner core is inside the outer shell. The outer surface includes a first tier texture including a first metal, wherein the first metal is greater than 50 atomic % of a total atomic content of all metals in the first tier texture; a second tier texture including the second metal, wherein the second metal is greater than 50 atomic % of a total atomic content of all metals in the second tier texture; and a third tier texture including the third metal, wherein the third metal is greater than 50 atomic % of a total atomic content of all metals in the third tier texture. The first metal, second metal, and third metals are different metals.
    Type: Grant
    Filed: November 15, 2021
    Date of Patent: March 26, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Martin Thuo, Boyce S. Chang, Andrew Martin, Winnie M. Kiarie
  • Patent number: 11933767
    Abstract: The present disclosure provides methods and systems for the characterization of a potential microtexture region (MTR) of a sample, component, or the like. The methods may include determining a threshold width of spatial correlation coefficient and/or a threshold spatial correlation coefficient slope for an actual MTR, characterizing a potential MTR as an actual MTR or a defect, characterizing an actual MTR as an acceptable MTR or not, and/or characterizing various components with potential MTRs as defective or not. The characterization may include calculating a width of spatial correlation coefficient and/or a spatial correlation coefficient slope of the potential MTR and comparing the width of spatial correlation coefficient to a threshold width of spatial correlation coefficient and/or comparing the spatial correlation coefficient slope to a threshold spatial correlation coefficient slope for the potential MTR to be characterized as an actual MTR or a defect (crack).
    Type: Grant
    Filed: September 2, 2022
    Date of Patent: March 19, 2024
    Assignees: RTX CORPORATION, IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Yong Tian, Ronald Roberts, Dan Barnard
  • Patent number: 11926524
    Abstract: This work develops a novel microfluidic method to fabricate conductive graphene-based 3D micro-electronic circuits on any solid substrate including, Teflon, Delrin, silicon wafer, glass, metal or biodegradable/non-biodegradable polymer-based, 3D microstructured, flexible films. It was demonstrated that this novel method can be universally applied to many different natural or synthetic polymer-based films or any other solid substrates with proper pattern to create graphene-based conductive electronic circuits. This approach also enables fabrication of 3D circuits of flexible electronic films or solid substrates. It is a green process preventing the need for expensive and harsh postprocessing requirements for other fabrication methods such as ink-jet printing or photolithography. We reported that it is possible to fill the pattern channels with different dimensions as low as 10×10 ?m. The graphene nanoplatelet solution with a concentration of 60 mg/mL in 70% ethanol, pre-annealed at 75° C. for 3 h, provided ˜0.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: March 12, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Metin Uz, Surya Mallapragada
  • Patent number: 11919781
    Abstract: A method embodiment involves preparing single metal or mixed transition metal chalcogenide using exfoliation of two or more different bulk transition metal dichalcogenides in a manner to form an intermediate hetero-layered transition metal chalcogenide structure, which can be treated to provide a single-phase transition metal chalcogenide.
    Type: Grant
    Filed: November 1, 2021
    Date of Patent: March 5, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Viktor Balema, Ihor Hlova, Vitalij K. Pecharsky
  • Patent number: 11912805
    Abstract: One aspect of the present application relates to a method of synthesizing a thermoplastic polymer. This method includes providing a depolymerized lignin product comprising monomers and oligomers and producing lignin (meth)acrylate monomers and oligomers from the depolymerized lignin product. A thermoplastic lignin (meth)acrylate polymer is then formed by free radical polymerization of the lignin (meth)acrylate monomers and oligomers. The present application also relates to a branched chain thermoplastic lignin (meth)acrylate polymer which includes a chain transfer agent. The thermoplastic lignin based polymers of the present application can be used to prepare carbon fibers, and engineering thermoplastics. Mixtures of lignin (meth)acrylate monomers and oligomers are also disclosed.
    Type: Grant
    Filed: January 31, 2020
    Date of Patent: February 27, 2024
    Assignee: IOWA STATE UNIVERSITY RESEARCH FOUNDATION, INC.
    Inventors: Eric W. Cochran, Xianglan Bai, Wangda Qu, Yuerui Huang, Yixin Luo
  • Patent number: 11913933
    Abstract: Apparatus, methods, and systems for transducing measurements from medium of interest. One non-limiting example is in planta monitoring of plants. In one aspect, a micro- or nano-scale probe body includes one or more microprobes (e.g. microneedles or waveguides) to access desired plant tissue, and one or more microsensors on the probe body. A microcircuit on or in the probe body transduces relevant measurements from the microsensor(s). An output interface allows storage, communication, or transfer of the transduced measurement for further use. Non-limiting examples are processing into estimations of chemical concentrations or the like for biochemical sensing. As such, if used as in planta sensors, they can be minimally invasive and cost effective for both single use and use in sets for plural plants with one central station.
    Type: Grant
    Filed: December 28, 2020
    Date of Patent: February 27, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Liang Dong, Md. Azahar Ali, Xinran Wang, Michael Castellano
  • Patent number: 11904318
    Abstract: Microfluidic devices and methods that utilize ion concentration polarization within water-in-oil nanoliter scale droplets for concentration enrichment, separation, and substitution of charges species are disclosed. Such devices and methods can be used for separation of multiple species by mobility of each species and for the alteration and manipulation of the droplet composition by ion exchange.
    Type: Grant
    Filed: October 14, 2021
    Date of Patent: February 20, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Robbyn K. Anand, Sungu Kim, Baskar Ganapathysubramanian
  • Patent number: 11891417
    Abstract: The present invention is directed to novel polynucleotides, polypeptides, and polyproteins of Mycoplasma surface proteins, all of which are useful in detecting infection and for the preparation of vaccines for treating and preventing diseases in swine and other animals. Vaccines provided according to the practice of the invention are effective against Mycoplasma infections. Detection and therapeutic polyclonal and monoclonal antibodies are also a feature of the present invention. Assays, kits, systems, and nanoparticle encapsulated compositions related to the polynucleotides, polypeptides, polyproteins, antibodies or fragments, derivatives, and variants thereof are also disclosed.
    Type: Grant
    Filed: November 3, 2022
    Date of Patent: February 6, 2024
    Assignee: Iowa State University Research Foundation, Inc.
    Inventors: Luis Gabriel Gimenez-Lirola, Bailey Arruda