Patents by Inventor John T. Felts

John T. Felts 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: 20240074944
    Abstract: An article or vessel is described including a vessel surface and a coating set comprising at least one tie coating, at least one barrier coating, and at least one pH protective coating. For example, the coating set can comprise a tie coating, a barrier coating, a pH protective coating and a second barrier coating; and in the presence of a fluid composition, the fluid contacting surface is the barrier coating or layer. The respective coatings can be applied by PECVD of a polysiloxane precursor. Such vessels can have a coated interior portion containing a fluid with a pH of 4 to 8. The barrier coating prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating and pH protective coating together protect the barrier layer from the contents of the vessel. The second barrier coating is comparable to glass surface if needed.
    Type: Application
    Filed: June 26, 2023
    Publication date: March 7, 2024
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts
  • Patent number: 11884446
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Grant
    Filed: November 16, 2022
    Date of Patent: January 30, 2024
    Assignee: SIO2 Medical Products, Inc.
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Publication number: 20230383409
    Abstract: A syringe or other vessel having a substrate surface coated by PECVD is provided. The PECVD coating is made by generating plasma from a gaseous reactant comprising an organosilicon precursor and optionally O2. The lubricity, hydrophobicity and/or barrier properties of the coating are set by setting the ratio of the O2 to the organosilicon precursor in the gaseous reactant, and/or by setting the electric power used for generating the plasma. In particular, a lubricity coating made by said method is provided. Vessels coated by said method and the use of such vessels protecting a compound or composition contained or received in said coated vessel against mechanical and/or chemical effects of the surface of the uncoated vessel material are also provided.
    Type: Application
    Filed: April 10, 2023
    Publication date: November 30, 2023
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona
  • Patent number: 11724860
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Grant
    Filed: September 24, 2021
    Date of Patent: August 15, 2023
    Assignee: SIO2 Medical Products, Inc.
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Publication number: 20230242323
    Abstract: The present disclosure is directed to multi-dose containers, such as eye drop bottles, nasal spray bottles, cosmetic and fragrance containers, and the like, in which at least a portion of an interior wall of the container, which is in contact with a fluid product, is provided with an anti-microbial coating. The anti-microbial coating is effective to inhibit the growth of microbes and/or inactivate or kill microbes, such as bacteria, that may be introduced into the lumen during use of the product. As such, the shelf life of the product after first use may be increased and/or the amount of preservatives or excipients in the fluid product may be decreased. The containers may also include one or more oxygen barrier coatings, which may increase the shelf life of the product prior to first use.
    Type: Application
    Filed: June 16, 2021
    Publication date: August 3, 2023
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts, Ahmad Taha, Robert S. Abrams
  • Patent number: 11684546
    Abstract: An article or vessel is described including a vessel surface and a coating set comprising at least one tie coating, at least one barrier coating, and at least one pH protective coating. For example, the coating set can comprise a tie coating, a barrier coating, a pH protective coating and a second barrier coating; and in the presence of a fluid composition, the fluid contacting surface is the barrier coating or layer. The respective coatings can be applied by PECVD of a polysiloxane precursor. Such vessels can have a coated interior portion containing a fluid with a pH of 4 to 8. The barrier coating prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating and pH protective coating together protect the barrier layer from the contents of the vessel. The second barrier coating is comparable to glass surface if needed.
    Type: Grant
    Filed: April 11, 2022
    Date of Patent: June 27, 2023
    Assignee: SIO2 Medical Products, Inc.
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts
  • Publication number: 20230150727
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Application
    Filed: November 16, 2022
    Publication date: May 18, 2023
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Patent number: 11624115
    Abstract: A syringe or other vessel having a substrate surface coated by PECVD is provided. The PECVD coating is made by generating plasma from a gaseous reactant comprising an organosilicon precursor and optionally O2. The lubricity, hydrophobicity and/or barrier properties of the coating are set by setting the ratio of the O2 to the organosilicon precursor in the gaseous reactant, and/or by setting the electric power used for generating the plasma. In particular, a lubricity coating made by said method is provided. Vessels coated by said method and the use of such vessels protecting a compound or composition contained or received in said coated vessel against mechanical and/or chemical effects of the surface of the uncoated vessel material are also provided.
    Type: Grant
    Filed: July 22, 2019
    Date of Patent: April 11, 2023
    Assignee: SIO2 Medical Products, Inc.
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona
  • Publication number: 20220259394
    Abstract: A substrate is described having a treated contact surface comprising a carbon or silicon compound comprising from 1 to 30 atomic percent oxygen, from 0.1 to 30 atomic percent nitrogen, or both, each as measured by XPS. A method is also provided for treating a surface of a substrate. The method includes treating the surface with plasma comprising one or more non-polymerizing compounds. The treated contact surface has a biomolecule recovery percentage greater than the biomolecule recovery percentage of the surface prior to treatment according to the method.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 18, 2022
    Inventors: Ahmad Taha, John T. Felts
  • Publication number: 20220244247
    Abstract: An article or vessel is described including a vessel surface and a coating set comprising at least one tie coating, at least one barrier coating, and at least one pH protective coating. For example, the coating set can comprise a tie coating, a barrier coating, a pH protective coating and a second barrier coating; and in the presence of a fluid composition, the fluid contacting surface is the barrier coating or layer. The respective coatings can be applied by PECVD of a polysiloxane precursor. Such vessels can have a coated interior portion containing a fluid with a pH of 4 to 8. The barrier coating prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating and pH protective coating together protect the barrier layer from the contents of the vessel. The second barrier coating is comparable to glass surface if needed.
    Type: Application
    Filed: April 11, 2022
    Publication date: August 4, 2022
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts
  • Publication number: 20220227954
    Abstract: A substrate is described having a treated contact surface comprising a carbon or silicon compound comprising from 1 to 30 atomic percent oxygen, from 0.1 to 30 atomic percent nitrogen, or both, each as measured by XPS. The treated contact surface has a biomolecule recovery percentage greater than the biomolecule recovery percentage of the surface before treatment according to the method.
    Type: Application
    Filed: January 21, 2022
    Publication date: July 21, 2022
    Inventors: Ahmad Taha, John T. Felts
  • Patent number: 11344473
    Abstract: A vessel has an interior surface facing a lumen. The interior surface includes a tie coating or layer, a barrier coating or layer, and a pH protective coating or layer. The tie coating or layer can comprise SiOxCy or SiNxCy, where x is from about 0.5 to about 2.4 and y is from about 0.6 to about 3. The barrier coating or layer can comprise SiOx, wherein x is from 1.5 to 2.9. The barrier coating or layer reduces the ingress of atmospheric gas into the lumen. The pH protective coating or layer can comprise SiOxCy or SiNxCy, as well. In an embodiment, in the presence of a fluid composition contained in the lumen and having a pH between 5 and 9, the calculated shelf life of the package can be more than six months at a storage temperature of 4° C.
    Type: Grant
    Filed: September 4, 2018
    Date of Patent: May 31, 2022
    Assignee: SiO2Medical Products, Inc.
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts
  • Publication number: 20220161969
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Application
    Filed: September 24, 2021
    Publication date: May 26, 2022
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Patent number: 11298293
    Abstract: An article or vessel is described including a vessel surface and a coating set comprising at least one tie coating, at least one barrier coating, and at least one pH protective coating. For example, the coating set can comprise a tie coating, a barrier coating, a pH protective coating and a second barrier coating; and in the presence of a fluid composition, the fluid contacting surface is the barrier coating or layer. The respective coatings can be applied by PECVD of a polysiloxane precursor. Such vessels can have a coated interior portion containing a fluid with a pH of 4 to 8. The barrier coating prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating and pH protective coating together protect the barrier layer from the contents of the vessel. The second barrier coating is comparable to glass surface if needed.
    Type: Grant
    Filed: January 15, 2021
    Date of Patent: April 12, 2022
    Assignee: Sio2 Medical Products, Inc.
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts
  • Patent number: 11248100
    Abstract: A substrate is described having a treated contact surface comprising a carbon or silicon compound comprising from 1 to 30 atomic percent oxygen, from 0.1 to 30 atomic percent nitrogen, or both, each as measured by XPS. The treated contact surface has a biomolecule recovery percentage greater than the biomolecule recovery percentage of the surface before treatment according to the method.
    Type: Grant
    Filed: June 15, 2016
    Date of Patent: February 15, 2022
    Assignee: SIO2 MEDICAL PRODUCTS, INC
    Inventors: Ahmad Taha, John T. Felts
  • Publication number: 20210363631
    Abstract: A method of reducing static charge of a plastic container is provided. The method includes providing a PECVD coating of SiCOH, SiOx or SiOH to an external support surface of the container. The PECVD coating reduces static charge of the container compared to a reference container that is essentially identical to the container except that the reference container is uncoated.
    Type: Application
    Filed: June 7, 2021
    Publication date: November 25, 2021
    Inventors: Tadashi Yamamoto, Christopher Weikart, John T. Felts, John Berggren
  • Publication number: 20210330869
    Abstract: A vessel including a thermoplastic wall enclosing a lumen is disclosed. The wall supports an SiOx composite barrier coating or layer, for which x is from 1.8 to 2.4, between the wall and the lumen. High Resolution X-ray Photoelectron Spectroscopy (XPS) shows the presence of an interface between the composite barrier coating or layer and the wall or substrate. In one aspect, the interface has at least 1 mol. % O3—Si—C covalent bonding, as a proportion of the O3—Si—C covalent bonding plus SiO4 bonding. In another aspect, the interface has an Si 2p chemical shift to lower binding energy (eV), compared to the binding energy of SiO4 bonding. The result is a tightly adherent composite barrier coating or layer having a high degree of adhesion to the substrate under practical use conditions. Methods of applying the composite barrier coating or layer are also disclosed.
    Type: Application
    Filed: May 3, 2021
    Publication date: October 28, 2021
    Inventors: Christopher Weikart, John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona
  • Patent number: 11148856
    Abstract: A method for providing a passivation layer or pH protective coating on a substrate surface by PECVD is provided, the method comprising generating a plasma from a gaseous reactant comprising polymerizing gases. The lubricity, passivation, pH protective, hydrophobicity, and/or barrier properties of the passivation layer or pH protective coating are set by setting the ratio of the O2 to the organosilicon precursor in the precursor feed, and/or by setting the electric power used for generating the plasma. In particular, a passivation layer or pH protective coating made by the method is provided. Pharmaceutical packages coated by the method and the use of such packages protecting composition contained in the vessel against mechanical and/or chemical effects of the surface of the package without a passivation layer or pH protective coating material are also provided.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: October 19, 2021
    Assignee: SiO2 Medical Products, Inc.
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona, Christopher Weikart
  • Patent number: 11123491
    Abstract: A package including a vessel wherein at least a portion of the vessel wall is made of a double wall material is disclosed. The double wall material comprises an interior polymer layer enclosed by an exterior polymer layer and one of the polymer layers is a layer made of cyclic olefin polymer (COP) resin. The package comprising the double wall, a CVD coating set on the wall, and a medicament comprising at least one protein, peptide, and/or DNA sequence is disclosed. Methods for processing a vessel, for example to provide lubricity or hydrophobicity, are also disclosed. The interior surface of the seated vessel can be processed via the vessel port by PECVD. Vessel barrier, lubricity and hydrophobic coatings and coated vessels, for example syringes and medical sample collection tubes are disclosed.
    Type: Grant
    Filed: November 28, 2017
    Date of Patent: September 21, 2021
    Assignee: SIO2 MEDICAL PRODUCTS, INC.
    Inventors: John T. Felts, Thomas E. Fisk, Robert S. Abrams, John Ferguson, Jonathan R. Freedman, Robert J. Pangborn, Peter J. Sagona
  • Patent number: 11116695
    Abstract: A blood sample collection tube and other vessels are described including an article surface and a coating set comprising a tie coating or layer of SiOxCy or SiNxCy applied to the article surface, a barrier coating or layer of SiOx, and a pH protective layer of SiOxCy or SiNxCy. The vessels optionally contain a fluid with a pH of 4 to 8, alternatively 5 to 9. The barrier coating or layer prevents oxygen from penetrating into the thermoplastic vessel, and the tie coating or layer and pH protective coating or layer together protect the barrier layer from the contents of the vessel.
    Type: Grant
    Filed: June 21, 2019
    Date of Patent: September 14, 2021
    Assignee: SIO2 MEDICAL PRODUCTS, INC.
    Inventors: Christopher Weikart, Becky L. Clark, Adam Stevenson, John T. Felts