Patents
US 12325215 B2: Roof underlayment
- Granted
- 2025-06-10
- Filed
- 2020-12-02 application 17782013
- Type
- Utility · 11 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An air and water barrier article comprised of multiple layers. The layers include a porous layer, a polymeric layer disposed on a front side of the porous layer, and a pressure sensitive adhesive disposed on a second side of the porous layer. In certain embodiments, a top polymeric layer having hydrophobic and UV resistant properties will be provided on a surface of the first polymeric layer opposite the adhesive layer. Each of the polymeric layers and the porous layer can be formed of a material(s) having a Tg between −40° C. and 20° C. The top layer, if present, can have a Tg between −5 and 30° C. The barrier article can provide nail seal ability and have a weight of less than 30 ounces per square yard.
Source: PVGPATDIS, file of 2026-04-10 (ipg250610.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SHURTAPE TECHNOLOGIES, LLC 23 patents | US company or organization | Hickory, NC | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Khaled El-Tahlawy | Hickory, NC | 10 | PVGPATDIS, file of 2026-04-10 | |
| Ameet Kulkarni | Hickory, NC | 4 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| B32B | Layered products, i.e. products built-up of strata of flat or non-flat, e.g. cellular or honeycomb, form | B32B27/12 | PVGPATDIS, file of 2026-04-10 |
| E04D | Roof coverings; sky-lights; gutters; roof-working tools | E04D12/002 | 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 |
|---|---|---|---|---|---|
| 2022-09-28 | Assignment Assignment of assignor's interest | EL-TAHLAWY, KHALED signed 2022-07-20 KULKARNI, AMEET signed 2022-07-20 | SHURTAPE TECHNOLOGIES, LLC HICKORY, NC | 61247/510 | 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.