Patents
US 12642920 B2: Delivery of small droplets to the respiratory system via electronic breath actuated droplet delivery device
- Granted
- 2026-06-02
- Filed
- 2020-06-29 application 17619960
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An ejector mechanism of a droplet delivery device includes a piezoelectric actuator coupled to an acoustic horn and an aperture plate including a plurality of openings. At least the fluid entrance side of one or more of the plurality of openings is configured to provide a surface contact angle of less than 90 degrees and the piezoelectric actuator is operable to oscillate the aperture plate at a frequency to thereby generate an ejected stream of droplets such that at least about 50% of the droplets have an average ejected droplet diameter of less than about 6 microns during use. A sealing mechanism is provided at an interface of the aperture plate and a detachable fluid cartridge.
Source: PTBLXML, file of 2026-06-02 (ipgb20260602.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| PNEUMA RESPIRATORY, INC. 28 patents | US company or organization | Boone, NC | Pneuma Respiratory, Inc. Form D issuer EXACT high confidence: identical full name and state | PTBLXML, file of 2026-06-02 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| John H. Hebrank | Boone, NC | 51 | PTBLXML, file of 2026-06-02 | |
| Charles Eric Hunter | Boone, NC | 53 | PTBLXML, file of 2026-06-02 | |
| Matthew Culpepper | Boone, NC | 3 | PTBLXML, file of 2026-06-02 | |
| Judson Sidney Clements | Boone, NC | 8 | PTBLXML, file of 2026-06-02 |
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 | A61M11/002 | PTBLXML, file of 2026-06-02 |
| B05B | Spraying apparatus; atomising apparatus; nozzles | B05B17/0646 | PTBLXML, file of 2026-06-02 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2025-11-24 | Assignment Assignment of assignor's interest | HUNTER, CHARLES ERIC signed 2021-06-14 CULPEPPER, MATTHEW signed 2021-06-09 HEBRANK, JOHN H. signed 2021-06-10 | PNEUMA RESPIRATORY, INC. BOONE, NC | 73017/575 | PASDL, file of 2026-10-15 |
| 2022-03-31 | Assignment Assignment of assignor's interest | CLEMENTS, JUDSON SIDNEY signed 2022-03-16 | PNEUMA RESPIRATORY, INC. BOONE, NC | 59463/88 | 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.