Patents
US 11912874 B2: Crude sterol as an additive in asphalt binder
- Granted
- 2024-02-27
- Filed
- 2016-12-05 application 16308408
- Type
- Utility · 16 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Disclosed are binders and methods for making such binders with crude sterols. The crude sterols improve various rheological properties of the binders. The disclosure provides a method for slowing the aging rate of aged asphalt binder comprising adding a crude sterol to an asphalt binder, wherein the asphalt binder comprises both virgin asphalt binder, and reclaimed asphalt binder material comprising asphalt pavement (RAP), asphalt shingles (RAS) or combinations of RAP and RAS.
Source: PVGPATDIS, file of 2026-04-10 (ipg240227.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| 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 |
| Ergon Asphalt & Emulsions, Inc. 28 patents | US company or organization | Jackson, MS | 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 | La Crosse, WI | 14 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C08L | Compositions of macromolecular compounds | C08L95/00 | PVGPATDIS, file of 2026-04-10 |
| A61K | Preparations for medical, dental or toiletry purposes | A61K31/56 | 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 | C04B18/16 | 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 |
| E01C | Construction of, or surfaces for, roads, sports grounds, or the like; machines or auxiliary tools for construction or repair | E01C1/00 | PVGPATDIS, file of 2026-04-10 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N33/42 | PVGPATDIS, file of 2026-04-10 |
| G01Q | Scanning-probe techniques or apparatus; applications of scanning-probe techniques, e.g. scanning probe microscopy [spm] | G01Q60/24 | 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 |
|---|---|---|---|---|---|
| 2018-12-10 | Assignment Assignment of assignor's interest | REINKE, GERALD H. signed 2018-12-05 BAUMGARDNER, GAYLON L. signed 2018-12-05 HANZ, ANDREW signed 2018-12-05 | A.L.M. HOLDING COMPANY ONALASKA, WI ERGON ASPHALT & EMULSIONS, INC. JACKSON, MS | 47724/914 | 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.