Patents by Inventor Paul R. Ohodnicki

Paul R. Ohodnicki 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).

  • Publication number: 20250102732
    Abstract: A fiber optic based sensing system and method includes a. functionalized optical fiber based sensor including an engineered sensing layer, a light source structured to generate light and couple the light into an input of the functionalized optical fiber based sensor, and an interrogator including a photodetector coupled to the functionalized optical fiber based sensor to receive transmitted or reflected tight, a transimpedance amplifier (TIA) circuit coupled to an output of the photodetector, a controller coupled to an output of the TIA circuit, and a transmitter (e.g., a wired or wireless transmitter) coupled to the controller.
    Type: Application
    Filed: February 2, 2023
    Publication date: March 27, 2025
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PAUL R. OHODNICKI, JR., YANG-DUAN SU, NAGESWARA RAO LALAM, JORDAN ATHAS, CARTER N. LEATHERMAN
  • Publication number: 20250052696
    Abstract: Systems and methods using single conductor guided surface electromagnetic (EM) waves to interrogate distant wireless active or passive sensor devices or media surrounding the conductor. The guided waves may be launched on the conductor over a wide frequency range (e.g., MHz to several GHz) using an RF launcher that is connected to an interrogator. Such guided surface EM waves can travel significantly longer distances as compared to the free space propagation of waves because they travel by waveguiding along the conductor surface. Using these waves, power and/or data can be delivered to sensors located on or near the conductor surface, and data can be received from the sensors.
    Type: Application
    Filed: August 12, 2024
    Publication date: February 13, 2025
    Applicant: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION
    Inventors: PAUL R. OHODNICKI, JR., JAGANNATH DEVKOTA, DAVID GREVE
  • Publication number: 20250044227
    Abstract: A system and method for detecting and quantifying the concentration of rare earth elements in a fluid contacting a sensor, the method having the steps of: providing the sensor to an environment such that the sensor is in contact with the fluid, wherein the sensor features a fiber extending between a first end and a second end along a longitudinal axis, wherein the sensor further features a coating on the second end of the fiber, and wherein the coating is a metal-organic framework material including, but not limited to zinc adeninate, 1,3,5-benzenetricarboxylate, 4,4-biphenyldicarboxylate, and combinations thereof; interrogating the sensor with light; collecting a luminescent signal; and detecting the rare earth elements in the fluid contacting the sensor using the luminescent signal.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 6, 2025
    Inventors: Paul R. Ohodnicki, JR., John P. Baltrus, Scott E. Crawford
  • Patent number: 12162798
    Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.
    Type: Grant
    Filed: January 8, 2024
    Date of Patent: December 10, 2024
    Assignee: Vitro Flat Glass LLC
    Inventors: Adam D. Polcyn, Paul A. Medwick, Andrew V. Wagner, Paul R. Ohodnicki, Jr., Dennis J. O'Shaughnessy, James P. Thiel
  • Publication number: 20240286952
    Abstract: An architectural transparency includes a substrate; a first dielectric layer over at least a portion of the substrate, a first metallic layer over the first dielectric layer, a first primer layer over the first metallic layer, a second dielectric layer over the first primer layer, a second metallic layer over the second dielectric layer, a second primer layer over the second metallic layer, a third dielectric layer over the second primer layer, a third metallic layer over the third dielectric layer, a third primer layer over the third dielectric layer, and a fourth dielectric layer over the third primer layer. At least one of the metallic layers is a subcritical metallic layer.
    Type: Application
    Filed: April 29, 2024
    Publication date: August 29, 2024
    Inventors: Adam D. Polcyn, Jeffrey A. Benigni, Abhinav Bhandari, Harry Buhay, James J. Finley, Paul A. Medwick, Dennis J. O'Shaughnessy, Paul R. Ohodnicki, Jr., JR., James P. Thiel, Andrew V. Wagner
  • Publication number: 20240272397
    Abstract: A cable installation apparatus includes a drive assembly and a cable assembly, wherein the apparatus dispenses the cable onto and/or into and along the inner surface of a tubular structure while being moved. The apparatus also includes a securing assembly for holding and dispensing a securing material component while the apparatus is being moved along the length of the tubular structure, wherein the securing material component secures the cable to the inner surface of the tubular structure after being dispensed from the apparatus. A cleaning assembly may also be included for cleaning portions of the inner surface of the tubular structure while the apparatus is being moved along the length of the tubular structure and before the cable is dispensed onto and/or into the portions of the inner surface of the tubular structure.
    Type: Application
    Filed: August 12, 2022
    Publication date: August 15, 2024
    Applicants: UNIVERSITY OF PITTSBURGH - OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, BRAINDRIP, LLC
    Inventors: PAUL R. OHODNICKI, KENT WEISENBERG, IBRAHIIM SYED
  • Patent number: 11993536
    Abstract: An architectural transparency includes a substrate; a first dielectric layer over at least a portion of the substrate, a first metallic layer over the first dielectric layer, a first primer layer over the first metallic layer, a second dielectric layer over the first primer layer, a second metallic layer over the second dielectric layer, a second primer layer over the second metallic layer, a third dielectric layer over the second primer layer, a third metallic layer over the third dielectric layer, a third primer layer over the third dielectric layer, and a fourth dielectric layer over the third primer layer. At least one of the metallic layers is a subcritical metallic layer.
    Type: Grant
    Filed: January 21, 2022
    Date of Patent: May 28, 2024
    Assignee: Vitro Flat Glass LLC
    Inventors: Adam D. Polcyn, Jeffrey A. Benigni, Abhinav Bhandari, Harry Buhay, James J. Finley, Paul A. Medwick, Dennis J. O'Shaughnessy, Paul R. Ohodnicki, Jr., James P. Thiel, Andrew V. Wagner
  • Publication number: 20240140860
    Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.
    Type: Application
    Filed: January 8, 2024
    Publication date: May 2, 2024
    Inventors: Adam D. Polcyn, Paul A. Medwick, Andrew V. Wagner, Paul R. Ohodnicki, JR., Dennis J. O'Shaughnessy, James P. Thiel
  • Patent number: 11891328
    Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.
    Type: Grant
    Filed: June 23, 2022
    Date of Patent: February 6, 2024
    Assignee: Vitro Flat Glass LLC
    Inventors: Adam D. Polcyn, Paul A. Medwick, Andrew V. Wagner, Paul R. Ohodnicki, Jr., Dennis J. O'Shaughnessy, James P. Thiel
  • Publication number: 20230333024
    Abstract: One or more embodiments relate to a sensor configuration system comprising at least one device configured to sense a first parameter; at least one device configured to sense a second parameter, and at least one interrogator device. The at least one device configured to sense the second parameter interfaces with the at least one device configured to sense the first parameter, and the at least one interrogator device interfaces both the at least one device configured to sense the first parameter and the at least one device configured to sense the second parameter where the at least one interrogator device spatially interrogates both the at least one device configured to sense the first parameter and the at least one device configured to sense the second parameter.
    Type: Application
    Filed: April 18, 2023
    Publication date: October 19, 2023
    Inventors: Ruishu F. Wright, Nathan Diemler, Nageswara R. Lalam, Jagannath Devkota, Paul R. Ohodnicki, JR.
  • Patent number: 11726047
    Abstract: Materials, methods of making, and methods of sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion using a hierarchical sensor network A hierarchical sensor network for sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion, including an interrogation system; and an intermediate sensor array layer in communication with the interrogation system. The network includes an interrogation system and an intermediate sensor array layer in communication with the interrogation system.
    Type: Grant
    Filed: October 2, 2018
    Date of Patent: August 15, 2023
    Assignee: United States Department of Energy
    Inventors: Paul R Ohodnicki, Jr., Ping Lu, Ruishu Wright, Jagannath Devkota
  • Publication number: 20230243760
    Abstract: A method to detect the presence and or concentration of an analyte in the environment of a spoof plasmon sensor having the steps of: providing a spoof plasmon sensor into an environment; interrogating said spoof plasmon sensor with an electromagnetic signal; collecting a modified electromagnetic signal from the spoof plasmon sensor; and analyzing the modified electromagnetic signal to detect an analyte in the environment of the sensor. A spoof plasmon sensor for detecting an analyte having a substrate with a superior surface; and a conductive material disposed on said superior surface, said conductive material defining a waveguide having a dual tapering shape, wherein said waveguide defines spoof plasmon cavities which are exposed substrate, where said substrate is configured to change in permittivity when contacted by an analyte.
    Type: Application
    Filed: January 26, 2023
    Publication date: August 3, 2023
    Inventors: Roman Shugayev, Jagannath Devkota, Paul R. Ohodnicki, JR.
  • Patent number: 11609281
    Abstract: A method includes producing an amorphous precursor to a nanocomposite, the amorphous precursor comprising a material that is substantially without crystals not exceeding 20% volume fraction; performing devitrification of the amorphous precursor, wherein the devitrification comprises a process of crystallization; forming, based on the devitrification, the nanocomposite with nano-crystals that contains an induced magnetic anisotropy; tuning, based on one or more of composition, temperature, configuration, and magnitude of stress applied during annealing and modification, the magnetic anisotropy of the nanocomposite; and adjusting, based on the tuned magnetic anisotropy, a magnetic permeability of the nanocomposite.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: March 21, 2023
    Assignee: Carnegie Mellon University
    Inventors: Alex M. Leary, Paul R. Ohodnicki, Michael E. McHenry, Vladimir Keylin, Joseph Huth, Samuel J. Kernion
  • Patent number: 11513100
    Abstract: A gas sensor (100,200) includes at least one sensor device including a surface acoustic wave (SAW) device (110) or a quartz crystal microbalance (QCM) device (210), and a layer of metal organic framework (MOF) material (120,220) disposed on each of the at least one sensor device. The at least one sensor device is structured to sense a change in mass of the MOF material.
    Type: Grant
    Filed: January 26, 2018
    Date of Patent: November 29, 2022
    Assignees: University of Pittsburgh-Of the Commonwealth System of Higher Education, United States Department of Energy
    Inventors: Christopher E. Wilmer, Jenna Gustafson, Paul R. Ohodnicki, Jagannath Devkota
  • Publication number: 20220341902
    Abstract: A system for determining pH of a fluid and a method to determine the pH of a fluid contacting a sensor, the method having the steps of: providing the sensor to an environment such that the sensor is in contact with the fluid, wherein the sensor features a fiber extending between a first end and a second end along a longitudinal axis, wherein the fiber further features a medial portion positioned between the first and second ends, wherein the sensor further features a pH sensitive coating on the medial portion of the fiber, and wherein the pH sensitive material features a metal oxide including but not limited to SiO2, TiO2, ZrO2, Ta2O5, A2O3, and combinations thereof; interrogating the sensor with an optical signal; collecting a modified optical signal after the sensor has been interrogated; and determining the pH of the fluid contacting the pH sensor using the modified optical signal.
    Type: Application
    Filed: April 26, 2022
    Publication date: October 27, 2022
    Inventors: Fei Lu, Ruishu Feng Wright, Paul R. Ohodnicki, JR., Ping Lu
  • Publication number: 20220332634
    Abstract: A method of tinting or coloring glass. The following layers are deposited onto the glass: a first dielectric layer, a subcritical metallic layer; a primer layer; and a second dielectric layer. Alternatively, these layers may be deposited onto the glass: a first dielectric layer, a subcritical metallic layer; and a second dielectric layer. Alternatively, the invention is a coated article that includes a substrate, a first dielectric layer, an absorbing layer, and a second dielectric layer over the primer layer. The absorbing layer can be Inconel, titanium nitride, cobalt chrome (stellite), or nickel chrome material, and has a thickness in the range of 50 ? to 150 ?.
    Type: Application
    Filed: June 23, 2022
    Publication date: October 20, 2022
    Inventors: Adam D. Polcyn, Paul A. Medwick, Andrew V. Wagner, Paul R. Ohodnicki, JR., Dennis J. O'Shaughnessy, James P. Thiel
  • Patent number: 11467338
    Abstract: A method of making an optical fiber sensor device for distributed sensing includes generating a laser beam comprising a plurality of ultrafast pulses, and focusing the laser beam into a core of an optical fiber to form a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to a longitudinal axis of optical fiber. Also, an optical fiber sensor device for distributed sensing includes an optical fiber having a longitudinal axis, a core, and a nanograting structure within the core, wherein the nanograting structure includes a plurality of spaced nanograting elements each extending substantially parallel to the longitudinal axis of the optical fiber. Also, a distributed sensing method and system and an energy production system that employs such an optical fiber sensor device.
    Type: Grant
    Filed: March 3, 2020
    Date of Patent: October 11, 2022
    Assignee: University of Pittsburgh-Of the Commonwealth System of Higher Education
    Inventors: Peng Kevin Chen, Aidong Yan, Michael P. Buric, Paul R. Ohodnicki, Sheng Huang
  • Publication number: 20220276179
    Abstract: Materials, methods of making, and methods of sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion using a hierarchical sensor network A hierarchical sensor network for sensing liquid droplets with high spatial resolution as a signature of the on-set of corrosion, including an interrogation system; and an intermediate sensor array layer in communication with the interrogation system. The network includes an interrogation system and an intermediate sensor array layer in communication with the interrogation system.
    Type: Application
    Filed: October 2, 2018
    Publication date: September 1, 2022
    Inventors: Paul R Ohodnicki, JR., Ping Lu, Ruishu Wright, Jagannath Devkota
  • Patent number: 11408827
    Abstract: A method for evaluating the pH of an aqueous solution by utilizing the optical properties of a pH sensing material comprised of plurality of optically active nanoparticles dispersed in matrix material. The optically active nanoparticles have an electronic conductivity greater than about 10?1 S/cm and generally have an average nanoparticle diameter of less that about 500 nanometers, and the matrix material is a material which experiences a change in surface charge density over a pH range from 2.0 to 12.0 of at least 1%. The method comprises contacting the pH sensing material and the aqueous solution, illuminating the pH sensing material, and monitoring an optical signal generated through comparison of incident light and exiting light to determine the optical transmission, absorption, reflection, and/or scattering of the pH sensitive material. The optical signal of the pH sensitive material varies in response to the pH of the aqueous solution.
    Type: Grant
    Filed: April 24, 2015
    Date of Patent: August 9, 2022
    Assignee: U.S. Department of Energy
    Inventors: Paul R. Ohodnicki, Jr., Congjun Wang, Thomas D. Brown, Barbara Kutchko
  • Publication number: 20220246961
    Abstract: A method of monitoring operation of a reactor system includes causing a chemical reaction to occur within an assembly of the reactor system, and measuring a chemical composition of one or more reactants of the chemical reaction with spatial resolution at a plurality of points along a path within the assembly using a sensor system structured to implement distributed sensing. The sensor system includes an optical fiber sensing member provided at least partially within the assembly, wherein the optical fiber sensing member comprises a functionalized optical fiber based sensor device structured to exhibit a change in one or more optical properties in response to changes in the chemical composition of the one or more reactants.
    Type: Application
    Filed: April 19, 2022
    Publication date: August 4, 2022
    Applicants: UNIVERSITY OF PITTSBURGH-OF THE COMMONWEALTH SYSTEM OF HIGHER EDUCATION, UNITED STATES DEPATMENT OF ENERGY
    Inventors: Peng K. Chen, Jacob Lorenzi Poole, Paul R. Ohodnicki, Thomas D. Brown, Kirk R. Gerdes, Michael P. Buric