Patents
US 11542668 B2: Sterol additive in asphalt pavement
- Granted
- 2023-01-03
- Filed
- 2018-02-01 application 15886605
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Pavement aging can be reduced by applying to an asphalt-containing pavement a topcoat layer or a surface treatment containing asphalt binder with sterols.
Source: PVGPATDIS, file of 2026-04-10 (ipg230103.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Ergon Asphalt & Emulsions, Inc. 28 patents | US company or organization | Jackson, MS | PVGPATDIS, file of 2026-04-10 | |
| A.L.M. HOLDING COMPANY 47 patents | US company or organization | Onalaska, WI | A.L.M. HOLDING COMPANY State business registration EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Gerald H. Reinke | La Crosse, WI | 44 | PVGPATDIS, file of 2026-04-10 | |
| Gaylon L. Baumgardner | Arkadelphia, AR | 46 | PVGPATDIS, file of 2026-04-10 | |
| Andrew Hanz | Tisch Mills, WI | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| E01C | Construction of, or surfaces for, roads, sports grounds, or the like; machines or auxiliary tools for construction or repair | E01C11/005 | 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 | C04B24/02 | PVGPATDIS, file of 2026-04-10 |
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K5/05 | PVGPATDIS, file of 2026-04-10 |
| C08L | Compositions of macromolecular compounds | C08L91/00 | PVGPATDIS, file of 2026-04-10 |
| Y02W | Climate change mitigation technologies related to wastewater treatment or waste management | Y02W30/91 | 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 |
|---|---|---|---|---|---|
| 2021-04-27 | Assignment Assignment of assignor's interest | REINKE, GERALD H. signed 2021-03-23 HANZ, ANDREW signed 2021-03-25 BAUMGARDNER, GAYLON L. signed 2021-03-29 | ERGON ASPHALT & EMULSIONS, INC. JACKSON, MS A.L.M. HOLDING COMPANY ONALASKA, WI | 56059/910 | 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.