Patents
US 12667842 B2: Directional control on a microfluidic chip
- Granted
- 2026-06-30
- Filed
- 2022-07-21 application 17869972
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A microfluidic system includes a fluidic platform having a surface, a first liquid disposed onto the fluidic platform, and a droplet disposed onto the first liquid. The first liquid has a first temperature. The droplet has a second temperature higher than the first temperature so that the droplet is levitated above the first liquid by a cushion of vapor of the first liquid. In an embodiment, a device is configured to provide a magnetic field that has variable strength across the surface. A location of a magnetic droplet relative to the surface area is affected by the magnetic field. A method includes providing a fluidic platform, providing a magnetic field, introducing a first liquid onto the fluidic platform, introducing a first magnetic droplet onto the first liquid, and locally varying the magnetic field.
Source: PTBLXML, file of 2026-06-30 (ipgb20260630.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Seagate Technology LLC 4,936 patents | US company or organization | Fremont, CA | PTBLXML, file of 2026-06-30 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Riyan Alex Mendonsa | Edina, MN | 82 | PTBLXML, file of 2026-06-30 | |
| Gemma Mendonsa | Edina, MN | 12 | PTBLXML, file of 2026-06-30 | |
| Brett R. Herdendorf | Mound, MN | 61 | PTBLXML, file of 2026-06-30 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01L | Chemical or physical laboratory apparatus for general use | B01L3/50273 | PTBLXML, file of 2026-06-30 |
| H01F | Magnets; inductances; transformers; selection of materials for their magnetic properties | H01F1/44 | PTBLXML, file of 2026-06-30 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
| Recorded | What | From | To | Reel/frame | Source |
|---|---|---|---|---|---|
| 2022-07-21 | Assignment Assignment of assignor's interest | MENDONSA, RIYAN ALEX signed 2022-07-19 MENDONSA, GEMMA signed 2022-07-20 HERDENDORF, BRETT R. signed 2022-07-19 | SEAGATE TECHNOLOGY LLC FREMONT, CA | 60578/33 | 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.