Patents
US 11724234 B2: Multilayer thin film nanocomposite membranes prepared by molecular layer-by-layer assembly
- Granted
- 2023-08-15
- Filed
- 2016-08-31 application 16329653
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
This invention relates thin film nanocomposites (TFNCs) and methods of preparing the same by molecular layer-by-layer assembly. The TFNCs comprise a porous nanofibrous support first layer coated with a mid-layer having an outer separating layer, wherein the out separating layer has one or more bilayers or trilayers. The TFNCs can be particularly suitable for use as filtration membranes for the separation of dissolved components from fluids such as ultrafiltration, nanofiltration, and reverse osmosis. Thus, embodiments of the invention also include filtration systems and methods of filtering.
Source: PVGPATDIS, file of 2026-04-10 (ipg230815.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SOUTH DAKOTA BOARD OF REGENTS 87 patents | US company or organization | Pierre, SD | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Rajesh Sahadevan | Dakota Dunes, SD | 1 | PVGPATDIS, file of 2026-04-10 | |
| Todd J. Menkhaus | Dakota Dunes, SD | 10 | PVGPATDIS, file of 2026-04-10 | |
| Hao Fong | Dakota Dunes, SD | 13 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B01D | Separation | B01D69/1251 | 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 |
|---|---|---|---|---|---|
| 2019-04-18 | Assignment Assignment of assignor's interest | FONG, HAO signed 2019-03-21 MENKHAUS, TODD J. signed 2019-03-21 SAHADEVAN, RAJESH signed 2019-04-01 | SOUTH DAKOTA BOARD OF REGENTS PIERRE, SD | 48928/143 | 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.