Patents
US 10941272 B2: Liquid coatings including expandable graphite
- Granted
- 2021-03-09
- Filed
- 2018-07-02 application 16025264
- Type
- Utility · 8 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of preparing a seamless membrane over a flat or low-sloped roof, the method comprising applying multiple layers of a liquid coating composition over a roof surface, where said step of applying includes applying at least one layer of a liquid coating composition that includes expandable graphite.
Source: PVGPATDIS, file of 2026-04-10 (ipg210309.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Firestone Building Products Company, LLC 136 patents | US company or organization | Nashville, TN | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Wensheng Zhou | Carmel, IN | 36 | PVGPATDIS, file of 2026-04-10 | |
| Michael J. Hubbard | Murfreesboro, TN | 62 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K3/04 | PVGPATDIS, file of 2026-04-10 |
| C08G | Macromolecular compounds obtained otherwise than by reactions only involving unsaturated carbon-to-carbon bonds | C08G18/42 | PVGPATDIS, file of 2026-04-10 |
| C08L | Compositions of macromolecular compounds | C08L101/00 | PVGPATDIS, file of 2026-04-10 |
| C09D | Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor | C09D175/04 | PVGPATDIS, file of 2026-04-10 |
| E04D | Roof coverings; sky-lights; gutters; roof-working tools | E04D7/00 | 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 |
|---|---|---|---|---|---|
| 2025-08-29 | Assignment Assignment of assignor's interest | HOLCIM TECHNOLOGY LTD signed 2025-06-01 | AMRIZE TECHNOLOGY SWITZERLAND LLC ZUG | 72740/505 | ECORSEXC, file of 2026-09-25 |
| 2022-07-26 | Assignment Assignment of assignor's interest | FIRESTONE BUILDING PRODUCTS COMPANY, LLC signed 2022-04-04 | HOLCIM TECHNOLOGY LTD 6300 ZUG | 60927/468 | PASDL, file of 2026-10-15 |
| 2018-07-02 | Assignment Assignment of assignor's interest | ZHOU, WENSHENG signed 2013-07-03 HUBBARD, MICHAEL J. signed 2013-07-25 | FIRESTONE BUILDING PRODUCTS CO., LLC NASHVILLE, TN | 46252/348 | 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.