Patents
US 12234362 B2: Reflective particulate compositions including a particulate mixture having improved hardness, methods of making the same, and methods for analyzing particulate mixture strength
- Granted
- 2025-02-25
- Filed
- 2020-12-04 application 17112510
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A reflective granular composition including a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt. A method for making a reflective granular composition includes the steps of mixing together a reflective pigment material including a majority of kaolin clay and a hardening additive including a sodium salt or another salt to form a particulate mixture, forming a slurry from the particulate mixture by adding to the particulate mixture water and a binder material, granulating the slurry, drying the granulated slurry, and kilning the dried, granulated slurry to form the reflective granular composition. Methods of analyzing the strength of a reflective granular composition are also disclosed.
Source: PVGPATDIS, file of 2026-04-10 (ipg250225.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| U.S. Silica Company 18 patents | US company or organization | Katy, TX | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Ramanan Pitchumani | Hagerstown, MD | 3 | PVGPATDIS, file of 2026-04-10 | |
| William R. Wells | Hancock, MD | 61 | PVGPATDIS, file of 2026-04-10 | |
| David Earl Weller, JR. | Rosedale, MD | 9 | 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 | C09C1/42 | 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 | C04B12/005 | PVGPATDIS, file of 2026-04-10 |
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K8/487 | PVGPATDIS, file of 2026-04-10 |
| E04D | Roof coverings; sky-lights; gutters; roof-working tools | E04D7/005 | PVGPATDIS, file of 2026-04-10 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N3/10 | PVGPATDIS, file of 2026-04-10 |
| C01P | Indexing scheme relating to structural and physical aspects of solid inorganic compounds | C01P2002/82 | PVGPATDIS, file of 2026-04-10 |
| Y02P | Climate change mitigation technologies in the production or processing of goods | Y02P40/10 | 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 |
|---|---|---|---|---|---|
| 2024-07-31 | Security interest Security interest Notice of grant of security interest in intellectual property (first lien) | U.S. SILICA COMPANY signed 2024-07-31 | WILMINGTON TRUST, NATIONAL ASSOCIATION, AS COLLATERAL AGENT ISELIN, NJ | 68307/349 | PASDL, file of 2026-10-15 |
| 2020-12-04 | Assignment Assignment of assignor's interest | PITCHUMANI, RAMANAN signed 2020-12-02 WELLS, WILLIAM signed 2020-12-02 WELLER, DAVID EARL, JR. signed 2020-11-30 | US SILICA COMPANY KATY, TX | 54551/357 | 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.