Patents
US 11649633 B2: Self-cleaning cool roof system
- Granted
- 2023-05-16
- Filed
- 2020-06-25 application 16911687
- Type
- Utility · 22 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Roofing systems are disclosed herein. In particular, a method of making an asphaltic roofing product having an asphaltic substrate and at least one granule disposed thereon is disclosed herein.
Source: PVGPATDIS, file of 2026-04-10 (ipg230516.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 |
|---|---|---|---|---|
| Steve Canova | Macon, GA | 15 | PVGPATDIS, file of 2026-04-10 | |
| Chad Cannan | Lancaster, NY | 52 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E04D | Roof coverings; sky-lights; gutters; roof-working tools | E04D1/20 | PVGPATDIS, file of 2026-04-10 |
| B32B | Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form | B32B7/00 | PVGPATDIS, file of 2026-04-10 |
| Y02A | Technologies for adaptation to climate change | Y02A30/254 | PVGPATDIS, file of 2026-04-10 |
| Y02B | Climate change mitigation technologies related to buildings, e.g. housing, house appliances or related end-user applications | Y02B80/00 | 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 |
| 2020-06-25 | Assignment Assignment of assignor's interest | CANOVA, STEVE signed 2018-09-26 CANNAN, CHAD signed 2019-06-17 | U.S. SILICA COMPANY KATY, TX | 53037/581 | 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.