Patents
US 12742990 B2: Layered substrate with reduced blue dot defect density
- Granted
- 2026-09-22
- Filed
- 2024-06-05 application 18735055
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An electrochromic (EC) device includes a substrate and a plurality of layers formed on the substrate. The plurality of layers includes an active layer that is lithiated for changing a tint of the EC device. The active layer is lithiated using a deposition process that uses one or more lithium (Li) targets. The deposition process provides, on no more than 1.5% of manufactured EC devices, a Li tungsten-oxide deposit area on the substrate that is over-concentrated with Li relative to a surrounding area on the substrate. In some aspects, the EC device may be a component of an EC system that further includes a power supply electrically connected to the EC device and configured to provide a voltage to the EC device for controlling a tint of the EC device.
Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SAGE Electrochromics, Inc. 105 patents | US company or organization | Faribault, MN | PTBLXML, file of 2026-09-22 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Nicholas John Blackmer | Medford, MN | PTBLXML, file of 2026-09-22 | ||
| Scott David Knapp | Lonsdale, MN | PTBLXML, file of 2026-09-22 | ||
| Joshua Schrot | Faribault, MN | PTBLXML, file of 2026-09-22 | ||
| Yan Wang | Lakeville, MN | 9 | PTBLXML, file of 2026-09-22 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G02F | Optical devices or arrangements for the control of light by modification of the optical properties of the media of the elements involved therein; non-linear optics; frequency-changing of light; optical logic elements; optical analogue/digital converters | G02F1/1533 | PTBLXML, file of 2026-09-22 |
| C23C | Coating metallic material; coating material with metallic material; surface treatment of metallic material by diffusion into the surface, by chemical conversion or substitution; coating by vacuum evaporation, by sputtering, by ion implantation or by chemical vapour deposition, in general | C23C14/0084 | PTBLXML, file of 2026-09-22 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.