Patents
US 12257371 B2: SiOx barrier for pharmaceutical package and coating process
- Granted
- 2025-03-25
- Filed
- 2021-05-03 application 17306621
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
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.
Source: PVGPATDIS, file of 2026-04-10 (ipg250325.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SIO2 MEDICAL PRODUCTS, LLC 69 patents | US company or organization | Auburn, AL | SIO2 MEDICAL PRODUCTS, INC. State business registration FUZZY medium confidence: same name (legal endings aside) and state SiO2 Medical Products, Inc. Form D issuer FUZZY medium confidence: same name (legal endings aside) and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christopher Weikart | Auburn, AL | 37 | PVGPATDIS, file of 2026-04-10 | |
| John T. Felts | Alameda, CA | 46 | PVGPATDIS, file of 2026-04-10 | |
| Thomas E. Fisk | Green Valley, AZ | 27 | PVGPATDIS, file of 2026-04-10 | |
| Robert S. Abrams | Albany, NY | 39 | PVGPATDIS, file of 2026-04-10 | |
| John Ferguson | Auburn, AL | 18 | PVGPATDIS, file of 2026-04-10 | |
| Jonathan R. Freedman | Auburn, AL | 35 | PVGPATDIS, file of 2026-04-10 | |
| Robert J. Pangborn | Harbor Springs, MI | 21 | PVGPATDIS, file of 2026-04-10 | |
| Peter J. Sagona | Pottstown, PA | 25 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61L | Methods or apparatus for sterilising materials or objects in general; disinfection, sterilisation or deodorisation of air; chemical aspects of bandages, dressings, absorbent pads or surgical articles; materials for bandages, dressings, absorbent pads or surgical articles | A61L31/088 | PVGPATDIS, file of 2026-04-10 |
| A61J | Containers specially adapted for medical or pharmaceutical purposes; devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms; devices for administering food or medicines orally; baby comforters; devices for receiving spittle | A61J1/035 | PVGPATDIS, file of 2026-04-10 |
| A61M | Devices for introducing media into, or onto, the body ; devices for transducing body media or for taking media from the body ; devices for producing or ending sleep or stupor | A61M5/3129 | PVGPATDIS, file of 2026-04-10 |
| C23C | Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general | C23C16/401 | PVGPATDIS, file of 2026-04-10 |
| A61F | Filters implantable into blood vessels; prostheses; devices providing patency to, or preventing collapsing of, tubular structures of the body, e.g. stents; orthopaedic, nursing or contraceptive devices; fomentation; treatment or protection of eyes or ears; bandages, dressings or absorbent pads; first-aid kits | A61F9/0008 | PVGPATDIS, file of 2026-04-10 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2024-09-05 | Security interest Security interest Security interest | SIO2 MEDICAL PRODUCTS, LLC signed 2024-08-30 | OAKTREE FUND ADMINISTRATION, LLC LOS ANGELES, CA | 68849/489 | PASDL, file of 2026-10-15 |
| 2024-09-04 | Name change Change of name | SIO2 MEDICAL PRODUCTS, INC. signed 2024-08-30 | SIO2 MEDICAL PRODUCTS, LLC AUBURN,, AL | 68839/691 | PASDL, file of 2026-10-15 |
| 2023-08-09 | Security interest Security interest Security interest | SIO2 MEDICAL PRODUCTS, INC. signed 2023-08-03 | OAKTREE FUND ADMINISTRATION, LLC LOS ANGELES, CA | 64544/940 | PASDL, file of 2026-10-15 |
| 2023-04-05 | Release of security interest Release of security interest | THE TEACHERS RETIREMENT SYSTEM OF ALABAMA signed 2021-12-20 | SIO2 MEDICAL PRODUCTS, INC. AUBURN, AL | 63257/371 | PASDL, file of 2026-10-15 |
| 2022-12-07 | Security interest Security interest Security interest | SIO2 MEDICAL PRODUCTS, INC. signed 2022-12-07 | SALZUFER HOLDING INC., AS ADMINISTRATIVE AGENT TAMPA, FL | 62094/121 | PASDL, file of 2026-10-15 |
| 2022-02-01 | Assignment Assignment of assignor's interest | ABRAMS, ROBERT S. signed 2015-07-28 FISK, THOMAS E. signed 2015-07-28 FERGUSON, JOHN signed 2015-07-30 FREEDMAN, JONATHAN R. signed 2015-07-30 SAGONA, PETER J. signed 2015-07-31 WEIKART, CHRISTOPHER signed 2015-08-04 PANGBORN, ROBERT J signed 2015-08-12 FELTS, JOHN T. signed 2015-08-26 | SIO2 MEDICAL PRODUCTS, INC. AUBURN, AL | 58851/453 | ECORSEXC, file of 2026-09-25 |
| 2021-12-21 | Security interest Security interest Security interest | SIO2 MEDICAL PRODUCTS, INC. signed 2021-12-21 | OAKTREE FUND ADMINISTRATION, LLC LOS ANGELES, CA | 58562/158 | PASDL, file of 2026-10-15 |
| 2021-10-18 | Correction Security agreement amendment | SIO2 MEDICAL PRODUCTS, INC. signed 2021-09-01 | THE TEACHERS' RETIREMENT SYSTEM OF ALABAMA MONTGOMERY, AL | 57841/984 | PASDL, file of 2026-10-15 |
Documents recorded with the USPTO Assignment Recordation Branch that list this patent. A security interest is a lender’s claim on the patent as collateral; a release ends it.
USPTO bulk data: PatentsView granted patents, disambiguated (PVGPATDIS) for patents, assignees, inventors, places and CPC categories; the USPTO Patent Assignment Dataset (ECORSEXC) for assignments and security interests. Patents filed in the last 20 years. No claims or full text. Links to other records are by name (and state): EXACT means the identical full name and state; FUZZY means a looser name match, with the confidence shown.