Patents
US 11208760 B2: Dyed fibers and methods of dyeing using O,O′-diacetyl leucoindigo
- Granted
- 2021-12-28
- Filed
- 2018-12-06 application 16770471
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
Described herein are compositions including O,O′-diacetyl leucoindigo. Also described herein are methods of pre-dyeing fibers with O,O′-diacetyl leucoindigo, followed by developing the pre-dyed fibers using hydrolysis or oxidation conditions to form indigo-dyed fibers. Also disclosed are indigo-dyed fibers, textiles, and fabrics made using O,O′-diacetyl leucoindigo, wherein cellulose, polyester, polyacrylonitrile, nylon, wool, and other compositional fiber types are suitably dyed with indigo dye using the described compositions and methods.
Source: PVGPATDIS, file of 2026-04-10 (ipg211228.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Stony Creek Colors, Inc. 2 patents | US company or organization | Goodlettsville, TN | STONY CREEK COLORS, INC. State business registration EXACT high confidence: identical full name and state Stony Creek Colors, Inc. Form D issuer EXACT high confidence: identical full name and state | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mark D. Keranen | Gainesville, FL | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| D06P | Dyeing or printing textiles; dyeing leather, furs or solid macromolecular substances in any form | D06P1/228 | PVGPATDIS, file of 2026-04-10 |
| C09B | Organic dyes or closely-related compounds for producing dyes ; , e.g. pigments; mordants; lakes | C09B7/02 | 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 |
|---|---|---|---|---|---|
| 2024-10-07 | Assignment Assignment of assignor's interest | STONY CREEK COLORS, INC. signed 2024-09-28 | RENEWAL FUND 2 LLC NASHVILLE, TN | 68810/439 | ECORSEXC, file of 2026-09-25 |
| 2022-03-03 | Assignment Assignment of assignor's interest | KERANEN, MARK D. signed 2017-12-22 | STONY CREEK COLORS, INC. GOODLETTSVILLE, TN | 59159/426 | 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.