Patents by Inventor Andrzej Sobkowiak

Andrzej Sobkowiak 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).

  • Method of Forming Corrosion Resistant Coating and Related Apparatus
    Publication number: 20210230751
    Abstract: A method of forming a corrosion-resistant ceramic coating on a metallic substrate, the method comprising providing a passivation layer on a surface of the metallic substrate by electrochemical passivation of the metallic substrate under a first electrical current and using a first electrically conducting solution; and providing the corrosion-resistant ceramic coating on an outermost surface of the metallic substrate, the outermost surface in use adapted to be exposed to a corrosive environment, by plasma electrolytic oxidation of the metallic substrate with the passivation layer, in a second electrically conducting solution and under a second electrical current having a discharge voltage. The first and the second electrically conducting solutions comprise a tetrafluoroborate compound.
    Type: Application
    Filed: April 9, 2021
    Publication date: July 29, 2021
    Applicants: PRATT & WHITNEY RZESZOW S.A., RZESZOW UNIVERSITY OF TECHNOLOGY
    Inventors: Krzysztof Raga, Adam Baran, Kazimierz Kwolek, Monika Kocój-Toporowska, Anna Dryzner, Jan Sieniawski, Andrzej Sobkowiak, Przemyslaw Kwolek, Lukasz Florczak, Marcin Drajewicz, Ginter Nawrat, Lukasz Nieuzyla, Tomasz Wieczorek, Miroslaw Dubiel, Gabriela Lach, Agnieszka Krzakala
  • Method of forming corrosion resistant coating and related apparatus
    Patent number: 11001927
    Abstract: A method of forming a corrosion-resistant ceramic coating on a metallic substrate, the method comprising providing a passivation layer on a surface of the metallic substrate by electrochemical passivation of the metallic substrate under a first electrical current and using a first electrically conducting solution; and providing the corrosion-resistant ceramic coating on an outermost surface of the metallic substrate, the outermost surface in use adapted to be exposed to a corrosive environment, by plasma electrolytic oxidation of the metallic substrate with the passivation layer, in a second electrically conducting solution and under a second electrical current having a discharge voltage. The first and the second electrically conducting solutions comprise a tetrafluoroborate compound.
    Type: Grant
    Filed: August 29, 2017
    Date of Patent: May 11, 2021
    Assignees: PRATT & WHITNEY RZESZOW S.A., RZESZOW UNIVERSITY OF TECHNOLOGY
    Inventors: Krzysztof Raga, Adam Baran, Kazimierz Kwolek, Monika Kocój-Toporowska, Anna Dryzner, Jan Sieniawski, Andrzej Sobkowiak, Przemysław Kwolek, Łukasz Florczak, Marcin Drajewicz, Ginter Nawrat, Łukasz Nieużyła, Tomasz Wieczorek, Mirosław Dubiel, Gabriela Lach, Agnieszka Krząkała
  • Method of Forming Corrosion Resistant Coating and Related Apparatus
    Publication number: 20190003056
    Abstract: A method of forming a corrosion-resistant ceramic coating on a metallic substrate, the method comprising providing a passivation layer on a surface of the metallic substrate by electrochemical passivation of the metallic substrate under a first electrical current and using a first electrically conducting solution; and providing the corrosion-resistant ceramic coating on an outermost surface of the metallic substrate, the outermost surface in use adapted to be exposed to a corrosive environment, by plasma electrolytic oxidation of the metallic substrate with the passivation layer, in a second electrically conducting solution and under a second electrical current having a discharge voltage. The first and the second electrically conducting solutions comprise a tetrafluoroborate compound.
    Type: Application
    Filed: August 29, 2017
    Publication date: January 3, 2019
    Inventors: Krzysztof Raga, Adam Baran, Kazimierz Kwolek, Monika Kocój-Toporowska, Anna Dryzner, Jan Sieniawski, Andrzej Sobkowiak, Przemyslaw Kwolek, Lukasz Florczak, Marcin Drajewicz, Ginter Nawrat, Lukasz Nieuzyla, Tomasz Wieczorek, Miroslaw Dubiel, Gabriela Lach, Agnieszka Krzakala
  • Conversion of H.sub.2 to sulfur
    Patent number: 5273734
    Abstract: A novel iron chelate treating solution containing a specified ferric chelate, and process for converting H.sub.2 S, are described.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: December 28, 1993
    Assignee: The Texas A&M University System
    Inventors: Donald T. Sawyer, Andrzej Sobkowiak
  • Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxygen in the reaction of organic compounds
    Patent number: 5149880
    Abstract: Nitrogen-containing aromatic heterocyclic ligand-metal complexes and their use for the activation of hydrogen peroxide and dioxgen are disclosed. Processes whereby activated hydrogen peroxide or dioxygen are used to transform various organic substrates are also disclosed. In particular, processes for the conversion of methylenic carbons to carbonyls, for the dioxygenation of aryl olefins, acetylenes and aryl-.alpha.-diols, for the oxidation of alcohols and aldehydes and for the removal of mercaptans from gaseous streams and for the removal of hydrogen sulfide and/or mercaptans from liquid streams are disclosed.
    Type: Grant
    Filed: August 24, 1990
    Date of Patent: September 22, 1992
    Assignee: The Texas A & M University System
    Inventors: Donald T. Sawyer, Ceshing Sheu, Andrzej Sobkowiak, Hui-Chan Tung