Patents by Inventor Bogdan Catalin Serban

Bogdan Catalin Serban 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: 10663425
    Abstract: A gas sensor includes a field effect transistor supported on an oxide layer of a substrate, the field effect transistor having a doped source (p+ doped for T-FET and n+ doped for FET) and an n+ doped drain separated by an channel region (intrinsic for T-FET or slightly p-doped for FET), and a floating gate separated from the channel region by a gate oxide, a passivation layer covering the floating gate, and a sensing layer supported by the passivation layer, the sensing layer comprising nanofibers.
    Type: Grant
    Filed: December 28, 2018
    Date of Patent: May 26, 2020
    Assignee: Honeywell International Inc.
    Inventors: Cornel P. Cobianu, Bogdan-Catalin Serban, Viorel Georgel Dumitru, Octavian Buiu, Alisa Stratulat, Mihai Brezeanu
  • Patent number: 10634636
    Abstract: A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A humidity sensitive layer is disposed above at least one of the first electrode and the second electrode, where the humidity sensitive layer comprises a curable composition comprising cellulose acetate butyrate and a hydrophobic filler. In some embodiments, a dust protection layer is disposed above the humidity sensitive layer.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 28, 2020
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Bogdan-Catalin Serban, Mihai Brezeanu, Octavian Buiu, Cornel P. Cobianu
  • Patent number: 10527598
    Abstract: A metal oxide heterostructure includes mixing a first precursor and a second precursor to form a precursor aqueous mixture, adding at least one constituent to the precursor aqueous mixture to form a first solution, adding a nanostructuring reagent to the first solution to form a second solution, sonochemically treating the second solution to provide a metal oxide powder, filtering, washing, and drying the metal oxide powder to provide a metal oxide nanocomposite heterostructure for a sensing layer of a hydrogen sulfide sensor. A method for forming a hydrogen sulfide sensor includes the metal oxide heterostructure, forming a sensing material, contacting the sensing material with interdigitated electrodes to form a sensing layer, and thermally consolidating the sensing layer to form the hydrogen sulfide sensor.
    Type: Grant
    Filed: August 9, 2018
    Date of Patent: January 7, 2020
    Assignee: HONEYWELL ROMANIA S.R.L.
    Inventors: Cornel P. Cobianu, Viorel Georgel Dumitru, Bogdan-Catalin Serban, Alisa Stratulat, Mihai Brezeanu, Octavian Buiu
  • Patent number: 10429333
    Abstract: A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A sensitive layer is disposed above at least one of the first electrode and the second electrode, where the sensitive layer is formed from a composition including a polyimide and a hydrophobic filler. A dust protection layer is disposed above the sensitive layer.
    Type: Grant
    Filed: April 4, 2016
    Date of Patent: October 1, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Bogdan-Catalin Serban, Cornel P. Cobianu, Mihai Brezeanu, Octavian Buiu, Cazimir Gabriel Bostan, Alisa Stratulat
  • Publication number: 20190154630
    Abstract: A gas sensor includes a field effect transistor supported on an oxide layer of a substrate, the field effect transistor having a doped source (p+ doped for T-FET and n+ doped for FET) and an n+ doped drain separated by an channel region (intrinsic for T-FET or slightly p-doped for FET), and a floating gate separated from the channel region by a gate oxide, a passivation layer covering the floating gate, and a sensing layer supported by the passivation layer, the sensing layer comprising nanofibers.
    Type: Application
    Filed: December 28, 2018
    Publication date: May 23, 2019
    Inventors: Cornel P. Cobianu, Bogdan-Catalin Serban, Viorel Georgel Dumitru, Octavian Buiu, Alisa Stratulat, Mihai Brezeanu
  • Publication number: 20190132340
    Abstract: A security system may include a normally open relay between an external network connection and at least one internal network connection, a network controller, and a microcontroller. The network controller may be configured to monitor for malicious activity on an external network accessible through the external network connection. The microcontroller may be configured to cause the normally open relay to temporarily close in response to the network controller failing to detect the malicious activity for a predetermined amount of time and cause the normally open relay to remain open and generate an alert in response to the network controller detecting the malicious activity.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Applicant: Cyberswarm, Inc.
    Inventors: Octavian Ionescu, Zoran Constantinescu, Bogdan Catalin Serban, Octavian Buiu, Andrei Buiu
  • Publication number: 20190128828
    Abstract: A sulfonated nanocellulose or sulfonated cellulose may be synthesized. A polyaniline emeraldine may be doped with the sulfonated nanocellulose or sulfonated cellulose to form a sulfonated nanocellulose-doped polyaniline or a sulfonated cellulose-doped polyaniline.
    Type: Application
    Filed: October 31, 2018
    Publication date: May 2, 2019
    Applicant: Cyberswarm, Inc.
    Inventors: Bogdan Catalin Serban, Octavian Buiu, Octavian Ionescu, Andrei Buiu
  • Patent number: 10246573
    Abstract: Various embodiments disclosed relate to anti-static compositions and gloves made from the same. In various embodiments, the present invention provides a doped polyaniline comprising a dopant that is a polyacrylic acid; a polymethacrylic acid; a sulfonatocalixarene; a cyclodextrin sulfate; a compound having the structure: wherein R2 is chosen from substituted or unsubstituted (C1-C10)hydrocarbyl- and substituted or unsubstituted (C1-C10)hydrocarbyl-O—, L1 is substituted or unsubstituted (C1-C10)hydrocarbylene, L2 is chosen from a bond, —O—, —O—C(O)—, and —NH—C(O)—, and n is about 1 to about 100,000; a salt thereof; or a combination thereof.
    Type: Grant
    Filed: February 2, 2017
    Date of Patent: April 2, 2019
    Assignee: HONEYWELL INTERNATIONAL INC.
    Inventors: Bogdan-Catalin Serban, Cornel P. Cobianu, Octavian Buiu, Mihai Brezeanu, Alisa Stratulat, Viorel Georgel Dumitru, Andrea Piesker, Christiane Saunier, Eric Farin
  • Patent number: 10197526
    Abstract: A gas sensor includes a field effect transistor supported on an oxide layer of a substrate, the field effect transistor having a doped source (p+ doped for T-FET and n+ doped for FET) and an n+ doped drain separated by an channel region (intrinsic for T-FET or slightly p-doped for FET), and a floating gate separated from the channel region by a gate oxide, a passivation layer covering the floating gate, and a sensing layer supported by the passivation layer, the sensing layer comprising nanofibers.
    Type: Grant
    Filed: August 29, 2016
    Date of Patent: February 5, 2019
    Assignee: Honeywell International Inc.
    Inventors: Cornel P. Cobianu, Bogdan-Catalin Serban, Viorel Georgel Dumitru, Octavian Buiu, Alisa Stratulat, Mihai Brezeanu
  • Publication number: 20180348185
    Abstract: A metal oxide heterostructure includes mixing a first precursor and a second precursor to form a precursor aqueous mixture, adding at least one constituent to the precursor aqueous mixture to form a first solution, adding a nanostructuring reagent to the first solution to form a second solution, sonochemically treating the second solution to provide a metal oxide powder, filtering, washing, and drying the metal oxide powder to provide a metal oxide nanocomposite heterostructure for a sensing layer of a hydrogen sulfide sensor. A method for forming a hydrogen sulfide sensor includes the metal oxide heterostructure, forming a sensing material, contacting the sensing material with interdigitated electrodes to form a sensing layer, and thermally consolidating the sensing layer to form the hydrogen sulfide sensor.
    Type: Application
    Filed: August 9, 2018
    Publication date: December 6, 2018
    Applicant: HONEYWELL ROMANIA S. R. L.
    Inventors: Cornel P. COBIANU, Viorel Georgel DUMITRU, Bogdan-Catalin SERBAN, Alisa STRATULAT, Mihai BREZEANU, Octavian BUIU
  • Publication number: 20180263316
    Abstract: Described is a multilayer glove (100) comprising at least one inner layer (230) having a thickness ti, a top surface, and a bottom surface, the bottom surface facing a hand of a user when wearing the glove; at least one inner protective layer (225) having a thickness tip, a top surface, and a bottom surface, the bottom surface abutting the top surface of the inner layer (230); an outer layer (210) having a thickness to, a top surface, and a bottom surface, the bottom surface facing a hand of a user when wearing the glove; at least one outer protective layer (215) having a thickness top, a top surface, and a bottom surface, the top surface abutting the bottom surface of the outer layer (210); and at least one indicator layer (220) having a thickness tc disposed between the top surface of the inner protective layer (225) and the bottom surface of the outer protective layer (215), wherein the indicator layer comprises at least one pH indicator that generates a color visible at the top surface of the outer layer
    Type: Application
    Filed: March 16, 2018
    Publication date: September 20, 2018
    Inventors: Cornel P. Cobianu, Alisa Stratulat, Bogdan-Catalin Serban, Octavian Buiu, Andrea Piesker, Eric Farin
  • Patent number: 10067107
    Abstract: A metal oxide heterostructure includes mixing a first precursor and a second precursor to form a precursor aqueous mixture, adding at least one constituent to the precursor aqueous mixture to form a first solution, adding a nanostructuring reagent to the first solution to form a second solution, sonochemically treating the second solution to provide a metal oxide powder, filtering, washing, and drying the metal oxide powder to provide a metal oxide nanocomposite heterostructure for a sensing layer of a hydrogen sulfide sensor. A method for forming a hydrogen sulfide sensor includes the metal oxide heterostructure, forming a sensing material, contacting the sensing material with interdigitated electrodes to form a sensing layer, and thermally consolidating the sensing layer to form the hydrogen sulfide sensor.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: September 4, 2018
    Assignee: Honeywell Romania s.r.l.
    Inventors: Cornel P. Cobianu, Viorel Georgel Dumitru, Bogdan-Catalin Serban, Alisa Stratulat, Mihai Brezeanu, Octavian Buiu
  • Publication number: 20180166911
    Abstract: A battery balancing system includes an energy balancing circuit. Multiple battery cells are coupled to the energy balancing circuit. A health assessment circuit is coupled to the multiple battery cells and configured to sense a state of health and a charge of each of the multiple battery cells. The balancing circuit switches energy between the multiple battery cells as a function of the sensed state of health and state of charge of each of the multiple battery cells to balance charge there between.
    Type: Application
    Filed: November 22, 2017
    Publication date: June 14, 2018
    Inventors: Octavian Ionescu, Octavian Buiu, Ion Georgescu, Viorel Georgel Dumitru, Bogdan-Catalin Serban, Mihai Brezeanu, Matei Serbanescu
  • Patent number: 9932449
    Abstract: A hydrogen sulfide sensor is disclosed. The hydrogen sulfide sensor includes a substrate, a pair of interdigitated electrodes supported by the substrate, and a nanocomposite based sensing layer deposited on the interdigitated electrodes and configured to interact with hydrogen sulfide.
    Type: Grant
    Filed: July 6, 2015
    Date of Patent: April 3, 2018
    Assignee: Honeywell Romania s.r.l.
    Inventors: Bogdan-Catalin Serban, Octavian Buiu, Cornel P. Cobianu, Mihai Brezeanu
  • Patent number: 9759680
    Abstract: A diamond based oxygen sensor is able to function in harsh environment conditions. The oxygen sensor includes a gateless field effect transistor including a synthetic, quasi-intrinsic, hydrogen-passivated, monocrystalline diamond layer exhibiting a 2-dimension hole gas effect. The oxygen sensor also includes a sensing layer comprising yttrium-stabilized zirconia deposited onto a surface of the gateless field effect transistor.
    Type: Grant
    Filed: April 22, 2016
    Date of Patent: September 12, 2017
    Assignee: Honeywell International Inc.
    Inventors: Mihai Brezeanu, Bogdan-Catalin Serban, Viorel Georgel Dumitru, Octavian Buiu
  • Publication number: 20170248537
    Abstract: A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A humidity sensitive layer is disposed above at least one of the first electrode and the second electrode, where the humidity sensitive layer comprises a curable composition comprising cellulose acetate butyrate and a hydrophobic filler. In some embodiments, a dust protection layer is disposed above the humidity sensitive layer.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 31, 2017
    Inventors: Bogdan-Catalin Serban, Mihai Brezeanu, Octavian Bulu, Cornel P. Cobianu
  • Publication number: 20170218179
    Abstract: Various embodiments disclosed relate to anti-static compositions and gloves made from the same. In various embodiments, the present invention provides a doped polyaniline comprising a dopant that is a polyacrylic acid; a polymethacrylic acid; a sulfonatocalixarene; a cyclodextrin sulfate; a compound having the structure: wherein R2 is chosen from substituted or unsubstituted (C1-C10)hydrocarbyl- and substituted or unsubstituted (C1-C10)hydrocarbyl-O—. L1 is substituted or unsubstituted (C1-C10)hydrocarbylene. L2 is chosen from a bond, —O—, —O—C(O)—, and —NH—C(O)—, and n is about 1 to about 100,000; a salt thereof; or a combination thereof.
    Type: Application
    Filed: February 2, 2017
    Publication date: August 3, 2017
    Inventors: Bogdan-Catalin Serban, Cornel P. Cobianu, Octavian Buiu, Mihai Brezeanu, Alisa Stratulat, Viorel Georgel Dumitru, Andrea Piesker, Christiane Saunier, Eric Farin
  • Publication number: 20170156420
    Abstract: An inner indicator glove formed of multiple layers including a protective layer having a top surface and a bottom surface, the bottom surface facing a hand of a user when wearing the inner indicator glove, and an indicator layer supported by the top surface of the protective layer and positioned to contact protective glove when the inner indicator glove is inserted into the protective glove, wherein the indicator layer is formed of a material that changes color when exposed to a solution penetrating the protective glove.
    Type: Application
    Filed: December 7, 2016
    Publication date: June 8, 2017
    Inventors: Cornel P. Cobianu, Bogdan-Catalin Serban, Octavian Buiu, Cristian Diaconu, Eric Farin, Christiane Saunier
  • Publication number: 20170097313
    Abstract: A relative humidity sensor is disclosed. The relative humidity sensor includes a first electrode and a second electrode disposed above a dielectric substrate. A sensitive layer is disposed above the first electrode and the second electrode, where the sensitive layer is formed from a doped conductive polymer.
    Type: Application
    Filed: September 29, 2016
    Publication date: April 6, 2017
    Inventors: Bogdan-Catalin Serban, Viorel Georgel Dumitru, Octavian Buiu, Mihai Brezeanu
  • Patent number: 9604191
    Abstract: The present disclosure relates to a nanostructured palladium-based flammable gas detector synthesized using sonochemistry. The nanostructured palladium-based flammable gas detectors may use nanostructured sensing materials to allow reduction of power consumption, where the nanostructures reduce power consumption due to their large specific area and increased porosity.
    Type: Grant
    Filed: July 30, 2015
    Date of Patent: March 28, 2017
    Assignee: Honeywell International Inc.
    Inventors: Cornel P. Cobianu, Bogdan-Catalin Serban, Alisa Stratulat, Viorel Georgel Dumitru, Mihai Brezeanu, Octavian Buiu