Patents
US 11406765 B2: Controlling the uniformity of PECVD deposition
- Granted
- 2022-08-09
- Filed
- 2019-07-24 application 16521207
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method and apparatus for plasma modifying a workpiece such as a syringe barrel, cartridge barrel, vial, or blood tube is described. Plasma is provided within the lumen of the workpiece. The plasma is provided under conditions effective for plasma modification of a surface of the workpiece. A magnetic field is provided in at least a portion of the lumen. The magnetic field has an orientation and field strength effective to improve the uniformity of plasma modification of the interior surface of the generally cylindrical wall. A vessel made according to the process or using the apparatus described above. A pharmaceutical package comprising the syringe barrel or vial containing a pharmaceutical preparation, secured with a closure.
Source: PVGPATDIS, file of 2026-04-10 (ipg220809.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 | |
| Becky L. Clark | San Diego, CA | 14 | PVGPATDIS, file of 2026-04-10 | |
| Adam Stevenson | Knoxville, TN | 21 | PVGPATDIS, file of 2026-04-10 | |
| Robert S. Abrams | New York, NY | 39 | PVGPATDIS, file of 2026-04-10 | |
| John Belfance | Cropwell, AL | 29 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| 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 | C23C16/045 | 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 |
| 2022-03-15 | Assignment Assignment of assignor's interest | CLARK, BECKY L. signed 2013-12-16 WEIKART, CHRISTOPHER signed 2013-12-16 STEVENSON, ADAM signed 2014-01-07 ABRAMS, ROBERT S. signed 2014-01-24 BELFANCE, JOHN signed 2014-01-24 | SIO2 MEDICAL PRODUCTS, INC. AUBURN, AL | 59367/459 | 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 |
| 2020-05-27 | Assignment Assignment of assignor's interest | CLARK, BECKY L. signed 2013-12-16 WEIKART, CHRISTOPHER signed 2013-12-16 STEVENSON, ADAM signed 2014-01-07 ABRAMS, ROBERT S. signed 2014-01-24 BELFANCE, JOHN signed 2014-01-24 | SIO2 MEDICAL PRODUCTS, INC. AUBURN, AL | 52757/520 | ECORSEXC, file of 2026-09-25 |
| 2019-12-17 | Correction Security agreement amendment | SIO2 MEDICAL PRODUCTS, INC. signed 2019-10-17 | THE TEACHERS' RETIREMENT SYSTEM OF ALABAMA MONTGOMERY, AL | 51322/951 | ECORSEXC, file of 2026-09-25 |
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.