Patents
US 10913856 B2: Gold nanoparticle in ceramic glaze
- Granted
- 2021-02-09
- Filed
- 2017-10-23 application 15790717
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A range of processes is described herein for the preparation of a range of gold nanoparticle (Au NP) ceramic glazes with traditional firing methods that represents significant efficiency and ecological advancements over existing methods and allows for the replacement of commercial ceramic colorant methods, while retaining the costly equipment and firing methods already used. The process allows for ceramic surface color while breaking standards for minimal amounts of transition metal colorant used. The nanoparticle-based glazes described here add new colors to the known ceramic surface palette and offers greater consumer safety as an alternative to existing coloring processes that use higher concentrations of toxic metal and an increased risk of metal leaching from the final ceramic vessel into its contents (e.g., soil, beverage, food).
Source: PVGPATDIS, file of 2026-04-10 (ipg210209.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| University of Richmond 3 patents | US company or organization | Richmond, VA | University of Richmond State business registration EXACT high confidence: identical full name and state University of Richmond College or university EXACT high confidence: identical full name and state UNIVERSITY OF RICHMOND Federal lobbying client EXACT high confidence: identical full name and state UNIVERSITY OF RICHMOND Nonprofit EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ryan Coppage | Richmond, VA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Michael Leopold | Glen Allen, VA | 1 | PVGPATDIS, file of 2026-04-10 | |
| Christine Lacy | Richmond, VA | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09C | Treatment of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties ; preparation of carbon black ; ; preparation of inorganic materials which are no single chemical compounds and which are mainly used as pigments or fillers | C09C1/0009 | PVGPATDIS, file of 2026-04-10 |
| C04B | Lime, magnesia; slag; cements; compositions thereof, e.g. mortars, concrete or like building materials; artificial stone ; ceramics ; refractories; treatment of natural stone | C04B33/04 | PVGPATDIS, file of 2026-04-10 |
| C01P | Indexing scheme relating to structural and physical aspects of solid inorganic compounds | C01P2004/04 | 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 |
|---|---|---|---|---|---|
| 2017-10-23 | Assignment Assignment of assignor's interest | COPPAGE, RYAN signed 2016-11-04 LEOPOLD, MICHAEL signed 2016-11-02 DAVIS, CHRISTINE signed 2016-11-07 | UNIVERSITY OF RICHMOND RICHMOND, VA | 43925/867 | 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.