Patents by Inventor Kathryn J. Wahl
Kathryn J. Wahl 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: 11827674Abstract: Peptides that form adhesive bonds, even in aqueous and/or saline environments, are disclosed. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: GrantFiled: February 22, 2023Date of Patent: November 28, 2023Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Christopher R. So, Kathryn J. Wahl
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Publication number: 20230234990Abstract: Peptides that form adhesive bonds, even in aqueous and/or saline environments, are disclosed. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: ApplicationFiled: February 22, 2023Publication date: July 27, 2023Inventors: Christopher R. So, Kathryn J. Wahl
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Patent number: 11608360Abstract: Peptides that form adhesive bonds, even in aqueous and/or saline environments, are disclosed. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: GrantFiled: February 1, 2021Date of Patent: March 21, 2023Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Christopher R. So, Kathryn J. Wahl
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Publication number: 20210163539Abstract: Peptides that form adhesive bonds, even in aqueous and/or saline environments, are disclosed. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: ApplicationFiled: February 1, 2021Publication date: June 3, 2021Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Christopher R. So, Kathryn J. Wahl
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Patent number: 10927148Abstract: Peptides that form adhesive bonds, even in aqueous and/or saline environments, are disclosed. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: GrantFiled: November 6, 2018Date of Patent: February 23, 2021Assignee: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Christopher R. So, Kathryn J. Wahl
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Publication number: 20200140490Abstract: The invention relates to peptides that form adhesive bonds, even in aqueous and/or saline environments. When aggregated, the peptides may be used in methods for producing hydrogels and/or adhesive materials. Synthetic peptide analogs are provided that are designed based on protein sequences found in barnacle adhesive, and may optionally be augmented with chemistry from other organisms that secrete proteins that adhere to substrates. The peptides may be used, for example, in biomedical and aqueous applications. Methods of using the aggregated peptides as adhesives are also provided.Type: ApplicationFiled: November 6, 2018Publication date: May 7, 2020Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Christopher R. So, Kathryn J. Wahl
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Patent number: 9895713Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of a first polyelectrolyte polymer to form a layer of the first polyelectrolyte polymer on the substrate; and contacting the layer of the first polyelectrolyte polymer with a second solution of a second polyelectrolyte polymer to form a layer of the second polyelectrolyte polymer on the layer of the first polyelectrolyte polymer. The first polyelectrolyte is a polyanion or polycation polymer. The second polyelectrolyte is a polyanion or polycation polymer of a charge opposite to that of the first polyelectrolyte polymer. At least one of the first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte polymer in the aggregate-forming solution.Type: GrantFiled: March 6, 2014Date of Patent: February 20, 2018Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Patent number: 9896593Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate; and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.Type: GrantFiled: January 3, 2014Date of Patent: February 20, 2018Assignee: The United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Publication number: 20160108504Abstract: A method for desensitizing an aluminum alloy is presented. A desired location on the surface of an aluminum alloy sample is exposed to a controlled pulsed electron beam. The pulsed electron beam heats a shallow layer of the metal alloy having a desired depth at the desired location on the surface of the sample to a temperature between a solvus temperature and an annealing temperature of the metal alloy to controllably reduce a degree of sensitization of the metal alloy sample at the desired location, an extent of a reduction in the degree of sensitization being controllable by varying at least one of a voltage, a current density, a pulse duration, a pulse frequency and a number of pulses of the electron beam.Type: ApplicationFiled: February 5, 2015Publication date: April 21, 2016Inventors: John D. Sethian, Matthew C. Myers, Mathew Wolford, Frank Hegeler, Ronald L. Holtz, Derek Horton, Alexis C. Lewis, Kathryn J. Wahl
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Patent number: 9315886Abstract: A method for desensitizing an aluminum alloy is presented. A desired location on the surface of an aluminum alloy sample is exposed to a controlled pulsed electron beam. The pulsed electron beam heats a shallow layer of the metal alloy having a desired depth at the desired location on the surface of the sample to a temperature between a solvus temperature and an annealing temperature of the metal alloy to controllably reduce a degree of sensitization of the metal alloy sample at the desired location, an extent of a reduction in the degree of sensitization being controllable by varying at least one of a voltage, a current density, a pulse duration, a pulse frequency and a number of pulses of the electron beam.Type: GrantFiled: February 5, 2015Date of Patent: April 19, 2016Assignee: The United States of America, as represented by the Secretary of the NavyInventors: John D. Sethian, Matthew C. Myers, Mathew Wolford, Frank Hegeler, Ronald L. Holtz, Derek Horton, Alexis C. Lewis, Kathryn J. Wahl
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Publication number: 20140242376Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of a first polyelectrolyte polymer to form a layer of the first polyelectrolyte polymer on the substrate; and contacting the layer of the first polyelectrolyte polymer with a second solution of a second polyelectrolyte polymer to form a layer of the second polyelectrolyte polymer on the layer of the first polyelectrolyte polymer. The first polyelectrolyte is a polyanion or polycation polymer. The second polyelectrolyte is a polyanion or polycation polymer of a charge opposite to that of the first polyelectrolyte polymer. At least one of the first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte polymer in the aggregate-forming solution.Type: ApplicationFiled: March 6, 2014Publication date: August 28, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud
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Publication number: 20140193644Abstract: A method, and an article made therefrom, of: contacting a substrate with a first solution of first polyelectrolyte chains to form a layer of the first polyelectrolyte on the substrate; and contacting the layer of the first polyelectrolyte with a second solution of second polyelectrolyte chains to form a layer of the second polyelectrolyte. The first polyelectrolyte has a polyanion or polycation chain. The second polyelectrolyte has a polyanion or polycation chain of a charge opposite to that of the first polyelectrolyte. The first solution or the second solution is an aggregate-forming solution comprising an ionic species having at least two discrete sites of a charge opposite to that of the polyelectrolyte chains in the aggregate-forming solution. The ionic species forms, via bridging interactions, aggregates of the polyelectrolyte chains that remain intact in the aggregate-forming solution during the contact.Type: ApplicationFiled: January 3, 2014Publication date: July 10, 2014Applicant: The Government of the United States of America, as represented by the Secretary of the NavyInventors: Walter J. Dressick, Kathryn J. Wahl, Dmitri Y. Petrovykh, Nabil D. Bassim, Rhonda Michelle Stroud