Patents
US 9638338 B2: Microfluidic pump and valve structures and fabrication methods
- Granted
- 2017-05-02
- Filed
- 2014-05-10 application 14274698
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Plastic microfluidic structures having a substantially rigid diaphragm that actuates between a relaxed state wherein the diaphragm sits against the surface of a substrate and an actuated state wherein the diaphragm is moved away from the substrate. As will be seen from the following description, the microfluidic structures formed with this diaphragm provide easy to manufacture and robust systems, as well readily made components such as valves and pumps.
Source: PVGPATDIS, file of 2026-04-10 (ipg170502.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Rheonix, Inc. 38 patents | US company or organization | Ithaca, NY | RHEONIX INC Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Peng Zhou | Newtown, PA | 52 | PVGPATDIS, file of 2026-04-10 | |
| Lincoln C. Young | Ithaca, NY | 40 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| F04B | Positive-displacement machines for liquids; pumps | F04B43/028 | PVGPATDIS, file of 2026-04-10 |
| B01F | Mixing, e.g. dissolving, emulsifying or dispersing | B01F25/451 | PVGPATDIS, file of 2026-04-10 |
| B01L | Chemical or physical laboratory apparatus for general use | B01L3/502707 | PVGPATDIS, file of 2026-04-10 |
| B29C | Shaping or joining of plastics; shaping of material in a plastic state, not otherwise provided for; after-treatment of the shaped products, e.g. repairing | B29C65/4895 | PVGPATDIS, file of 2026-04-10 |
| B81B | Microstructural devices or systems, e.g. micromechanical devices | B81B3/0021 | PVGPATDIS, file of 2026-04-10 |
| B81C | Processes or apparatus specially adapted for the manufacture or treatment of microstructural devices or systems | B81C1/00103 | PVGPATDIS, file of 2026-04-10 |
| F15C | Fluid-circuit elements predominantly used for computing or control purposes | F15C1/08 | PVGPATDIS, file of 2026-04-10 |
| F16K | Valves; taps; cocks; actuating-floats; devices for venting or aerating | F16K7/12 | PVGPATDIS, file of 2026-04-10 |
| B29K | Indexing scheme associated with subclasses b29b, b29c or b29d, relating to moulding materials or to materials for ; moulds, ; reinforcements, fillers or preformed parts, e.g. inserts | B29K2025/00 | PVGPATDIS, file of 2026-04-10 |
| B29L | Indexing scheme associated with subclass b29c, relating to particular articles | B29L2031/7496 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T29/49405 | 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 |
|---|---|---|---|---|---|
| 2021-05-17 | Security interest Security interest Security interest | RHEONIX, INC. signed 2021-05-17 | GRASSHOPPER BANK, N.A. NEW YORK, NY | 56254/74 | ECORSEXC, file of 2026-09-25 |
| 2014-05-10 | Assignment Assignment of assignor's interest | YOUNG, LINCOLN C. signed 2014-05-02 ZHOU, PENG signed 2014-05-02 | RHEONIX, INC. ITHACA, NY | 32865/498 | 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.