Patents
US 11773282 B2: Systems and methods for printing patterns using near infrared upconverting inks
- Granted
- 2023-10-03
- Filed
- 2019-07-02 application 16460520
- Type
- Utility · 19 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present invention relates generally to using upconverting inks for producing highly-resolved patterns for inter alia, security applications. More specifically, the present invention relates to the use of sols (inks) and printing processes that produce well-defined printed features consisting of polymers impregnated with luminescent upconversion nanocrystals. The patterns printed using such inks and processes may exhibit defined shapes, characters of text, and various other types of images.
Source: PVGPATDIS, file of 2026-04-10 (ipg231003.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| SOUTH DAKOTA BOARD OF REGENTS 87 patents | US company or organization | Pierre, SD | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Jon Kellar | Rapid City, SD | 8 | PVGPATDIS, file of 2026-04-10 | |
| P. Stanley May | Rapid City, SD | 6 | PVGPATDIS, file of 2026-04-10 | |
| William M. Cross, Jr. | Rapid City, SD | 23 | PVGPATDIS, file of 2026-04-10 | |
| Jeevan Meruga | Rapid City, SD | 7 | PVGPATDIS, file of 2026-04-10 | |
| Tyler Blumenthal | Rapid City, SD | 9 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C09D | Coating compositions, e.g. paints, varnishes or lacquers; filling pastes; chemical paint or ink removers; inks; correcting fluids; woodstains; pastes or solids for colouring or printing; use of materials therefor | C09D11/50 | PVGPATDIS, file of 2026-04-10 |
| B41F | Printing machines or presses | B41F17/00 | PVGPATDIS, file of 2026-04-10 |
| B42D | Books; book covers; loose leaves; printed matter characterised by identification or security features; printed matter of special format or style not otherwise provided for; devices for use therewith and not otherwise provided for; movable-strip writing or reading apparatus | B42D25/382 | PVGPATDIS, file of 2026-04-10 |
| B41M | Printing, duplicating, marking, or copying processes; colour printing, | B41M3/14 | 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 |
|---|---|---|---|---|---|
| 2019-07-30 | Assignment Assignment of assignor's interest | MAY, P. STANLEY signed 2015-01-21 CROSS, WILLIAM signed 2015-01-23 KELLAR, JON signed 2015-01-23 MERUGA, JEEVAN signed 2015-01-23 BLUMENTHAL, TYLER signed 2015-01-30 | SOUTH DAKOTA BOARD OF REGENTS PIERRE, SD | 49913/125 | 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.