Patents
US 9682170 B2: Nanostructured hydroxyapatite coating for dental and orthopedic implants
- Granted
- 2017-06-20
- Filed
- 2010-08-20 application 13391357
- Type
- Utility · 21 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A high-strength coating for dental and orthopedic implants utilizing hydroxyapatite (HAp) nanoparticles provides for a high level of osseointegration through a range of surface pore sizes in the micro- to nanoscale. Zinc oxide (ZnO) nanoparticles may be incorporated with the HAp nanoparticles to form a composite coating material, with ZnO providing infection resistance due to its inherent antimicrobial properties. A textured surface, consisting of “islands” of roughly square coating structures measuring about 250 μm on a side, with spacing of 50-100 μm therebetween, may further promote the osseointegration and antimicrobial properties of the implant coating.
Source: PVGPATDIS, file of 2026-04-10 (ipg170620.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS 225 patents | US company or organization | Little Rock, AR | PVGPATDIS, file of 2026-04-10 | |
| NanoMech, Inc. 11 patents | US company or organization | Springdale, AR | NANOMECH INC State business registration EXACT high confidence: identical full name and state NanoMech, 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 |
|---|---|---|---|---|
| Ajay P. Malshe | Springdale, AR | 24 | PVGPATDIS, file of 2026-04-10 | |
| Wenping Jiang | Fayetteville, AR | 12 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61L | Methods or apparatus for sterilising materials or objects in general; disinfection, sterilisation or deodorisation of air; chemical aspects of bandages, dressings, absorbent pads or surgical articles; materials for bandages, dressings, absorbent pads or surgical articles | A61L27/306 | PVGPATDIS, file of 2026-04-10 |
| Y10T | Technical subjects covered by former us classification | Y10T428/24413 | 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 |
|---|---|---|---|---|---|
| 2019-08-29 | Other License | NANOMECH, INC. signed 2019-07-31 | P&S GLOBAL HOLDINGS LLC HOUSTON, TX | 50214/863 | PASDL, file of 2026-08-13 |
| 2019-08-29 | Assignment Assignment of assignor's interest | NANOMECH, INC. signed 2019-07-31 | P&S GLOBAL HOLDINGS LLC HOUSTON, TX | 50214/655 | PASDL, file of 2026-10-15 |
| 2018-04-10 | Security interest Security interest Security interest | NANOMECH, INC. signed 2018-04-10 | MICHAELSON CAPITAL SPECIAL FINANCE FUND II, L.P. NEW YORK, NY | 45494/391 | PASDL, file of 2026-08-13 |
| 2012-05-05 | Assignment Assignment of assignor's interest | JIANG, WENPING signed 2012-05-04 | NANOMECH INC. FAYETTEVILLE, AR | 28161/964 | ECORSEXC, file of 2026-09-25 |
| 2012-05-05 | Assignment Assignment of assignor's interest | MALSHE, AJAY P. signed 2012-05-04 | THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ARKANSAS LITTLE ROCK, AR | 28161/960 | 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.