Patents by Inventor Derrick Johns

Derrick Johns 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: 20260000504
    Abstract: Cardiac replacement valves that are anti-biofilm and tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are hydrophilic due to the presence of ceramic particles such as zeolite. In certain embodiments, the devices are subjected to a surface treatment such as a plasma treatment or a corona discharge treatment to enhance the immobilization of integrin-stimulating peptides such as RGD to the biomaterial for cell adhesion enhancement when implanted in a host. Methods of replacing diseased valves in a patient are also disclosed.
    Type: Application
    Filed: June 27, 2023
    Publication date: January 1, 2026
    Inventors: Derrick Johns, Joseph J. Crudden
  • Publication number: 20250242085
    Abstract: Anti-biofilm osseointegrating and/or tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are subjected to a surface treatment such as a plasma treatment or a corona discharge treatment to enhance the immobilization of integrin-stimulating peptides such as RGD to the biomaterial for cell adhesion enhancement when implanted in a host.
    Type: Application
    Filed: April 12, 2023
    Publication date: July 31, 2025
    Inventors: Joseph J. Crudden, Derrick Johns, Sriram Sankar
  • Publication number: 20250000638
    Abstract: Breast prostheses that are anti-biofilm implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are hydrophilic and include a capsular contracture reducing or inhibiting agent.
    Type: Application
    Filed: June 25, 2024
    Publication date: January 2, 2025
    Inventors: Derrick Johns, Joseph J. Crudden
  • Patent number: 12178936
    Abstract: Anti-biofilm osseointegrating and/or tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are engineered to produce structures suitable as implants having a relatively high surface population of zeolite. Methods of producing the devices are also disclosed.
    Type: Grant
    Filed: September 27, 2023
    Date of Patent: December 31, 2024
    Assignee: DiFusion, Inc.
    Inventors: Derrick Johns, Joseph J. Crudden, Sriram Sankar
  • Publication number: 20240016975
    Abstract: Anti-biofilm osseointegrating and/or tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are engineered to produce structures suitable as implants having a relatively high surface population of zeolite. Methods of producing the devices are also disclosed.
    Type: Application
    Filed: September 27, 2023
    Publication date: January 18, 2024
    Inventors: Derrick Johns, Joseph J. Crudden, Sriram Sankar
  • Publication number: 20210402052
    Abstract: Anti-biofilm osseointegrating and/or tissue-integrating implantable biomaterial devices that optionally can elute therapeutic ions such as magnesium, silver, copper and/or zinc. In certain embodiments, the devices are engineered to produce structures suitable as implants having a relatively high surface population of zeolite. Methods of producing the devices are also disclosed.
    Type: Application
    Filed: June 29, 2021
    Publication date: December 30, 2021
    Inventors: Derrick Johns, Joseph J. Crudden, Sriram Sankar
  • Publication number: 20200338238
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Inventors: Joseph J. Crudden, Derrick Johns
  • Publication number: 20200338237
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Application
    Filed: July 8, 2020
    Publication date: October 29, 2020
    Inventors: Joseph J. Crudden, Derrick Johns
  • Publication number: 20200315802
    Abstract: Anti-biofilm osseointegrating implantable devices are made by additive manufacturing. A powder formulation is made that includes a resin such as a polyarylether ketone such as PEEK, and a zeolite, and the zeolite may be loaded with one or more therapeutic metal ions, such as silver, copper and/or zinc that exhibit antimicrobial properties. The powder formulation also may include a porogen to control the porosity of the resulting three-dimensional implant device. The devices, which are osseointegrating, may include metal-loaded zeolite so as to elute antimicrobial metal ions in a therapeutically effective amount when implanted into a body and exposed to bodily fluid.
    Type: Application
    Filed: June 18, 2020
    Publication date: October 8, 2020
    Inventors: Joseph J. Crudden, Derrick Johns, Sriram Sankar
  • Publication number: 20190298523
    Abstract: Anti-biofilm osseointegrating implantable devices are made by additive manufacturing. A powder formulation is made that includes a resin such as a polyarylether ketone such as PEEK, and a zeolite, and the zeolite may be loaded with one or more therapeutic metal ions, such as silver, copper and/or zinc that exhibit antimicrobial properties. The powder formulation also may include a porogen to control the porosity of the resulting three-dimensional implant device. The devices, which are osseointegrating, may include metal-loaded zeolite so as to elute antimicrobial metal ions in a therapeutically effective amount when implanted into a body and exposed to bodily fluid.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Joseph J. Crudden, Derrick Johns, Sriram Sankar
  • Publication number: 20190298886
    Abstract: Anti-biofilm osseointegrating implantable devices that can elute therapeutic ions such as silver are provided by powder coating implantable substrates such as metal substrates. The polymer includes a polyarylether ketone such as PEEK, and zeolite, and the zeolite may be loaded with one or more therapeutic metal ions, such as silver, copper and/or zinc that exhibit antimicrobial properties. The devices, when implanted into a body and exposed to bodily fluid, may elute antimicrobial metal ions in a therapeutically effective amount.
    Type: Application
    Filed: March 29, 2019
    Publication date: October 3, 2019
    Inventors: Joseph J. Crudden, Derrick Johns, Sriram Sankar
  • Publication number: 20170021061
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Application
    Filed: October 7, 2016
    Publication date: January 26, 2017
    Inventors: Joseph J. Crudden, Derrick Johns
  • Patent number: 9492584
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: November 15, 2016
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Patent number: 9132576
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: August 28, 2014
    Date of Patent: September 15, 2015
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Publication number: 20140366362
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Application
    Filed: August 28, 2014
    Publication date: December 18, 2014
    Inventors: Joseph J. Crudden, Derrick Johns
  • Patent number: 8840914
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: October 17, 2012
    Date of Patent: September 23, 2014
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Patent number: 8821912
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Grant
    Filed: December 10, 2010
    Date of Patent: September 2, 2014
    Assignee: DiFusion Technologies, Inc.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Publication number: 20130004585
    Abstract: Methods of fabricating implantable medical devices, preferably with PEEK, having antimicrobial properties, are disclosed. The antimicrobial effect is produced by incorporating ceramic particles containing antimicrobial metal cations into molten PEEK resin, which is subsequently allowed to cool and set in its final shape achieved by injection molding, cutting and machining or other techniques.
    Type: Application
    Filed: December 10, 2010
    Publication date: January 3, 2013
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Joseph J. Crudden, Jami Hafiz, James E. Deaton, John R. Pepper, Derrick Johns
  • Publication number: 20120315340
    Abstract: Methods of post-loading ceramic particles with antimicrobial metal cations are disclosed. In certain embodiments, the post-loaded particles are zeolites, wherein the zeolites have been incorporated into a resin and the combination is used as an implantable device. In certain embodiments, the polymer is a thermoplastic polymer such as polyaryletheretherketone (PEEK). In certain embodiments, the source of antimicrobial activity includes ion-exchangeable cations contained in a zeolite. In certain embodiments, disclosed are methods of imparting antimicrobial activity to devices by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in the device.
    Type: Application
    Filed: November 24, 2010
    Publication date: December 13, 2012
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Joseph J. Crudden, Derrick Johns
  • Publication number: 20120141599
    Abstract: Medical implants such as bone graft substitutes that include one or more cations are delivered in a local environment to promote osteogenesis. Zeolite loaded with a metal cation in combination with an implant such as a bone graft substitute can be used as an implant in the body to regulate protein transcription and translation. Also disclosed are methods of promoting osteogenesis in a patient in need thereof, methods for modulating bone formation and mineralization by implanting in a patient a medical implant comprising ion-exchangeable cations, and methods of regulating BMP gene expression in bone cells in a patient by controlling the delivery of certain cations through ion-exchange via a zeolite incorporated in a bone substitute implanted in a patient so that BMP gene expression can be upregulated or downregulated appropriately.
    Type: Application
    Filed: March 30, 2010
    Publication date: June 7, 2012
    Applicant: DIFUSION TECHNOLOGIES, INC.
    Inventors: Derrick Johns, Matthew Geck, Peter Whang, Jami Hafiz