Patents
US 11568161 B2: Reader apparatus for upconverting nanoparticle ink printed images
- Granted
- 2023-01-31
- Filed
- 2020-05-27 application 16884474
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An improved system and method for reading an upconversion response from nanoparticle inks is provided. A is adapted to direct a near-infrared excitation wavelength at a readable indicia, resulting in a near-infrared emission wavelength created by the upconverting nanoparticle inks. A short pass filter may filter the near-infrared excitation wavelength. A camera is in operable communication with the short pass filter and receives the near-infrared emission wavelength of the readable indicia. The system may further include an integrated circuit adapted to receive the near-infrared emission wavelength from the camera and generate a corresponding signal. A readable application may be in operable communication with the integrated circuit. The readable application receives the corresponding signal, manipulates the signal, decodes the signal into an output, and displays and/or stores the output.
Source: PVGPATDIS, file of 2026-04-10 (ipg230131.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 |
|---|---|---|---|---|
| David Langerman | Rapid City, SD | 3 | PVGPATDIS, file of 2026-04-10 | |
| Jon Kellar | Rapid City, SD | 8 | PVGPATDIS, file of 2026-04-10 | |
| William M. Cross, Jr. | Rapid City, SD | 23 | PVGPATDIS, file of 2026-04-10 | |
| P. Stanley May | Rapid City, SD | 6 | PVGPATDIS, file of 2026-04-10 | |
| Julian Brackins | Rapid City, SD | 3 | PVGPATDIS, file of 2026-04-10 | |
| Jeevan Meruga | Rapid City, SD | 7 | PVGPATDIS, file of 2026-04-10 | |
| Aravind Baride | Rapid City, SD | 4 | PVGPATDIS, file of 2026-04-10 | |
| John Rapp | Rapid City, SD | 3 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G06K | Graphical data reading ; presentation of data; record carriers; handling record carriers | G06K7/10564 | 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 | B42D25/29 | PVGPATDIS, file of 2026-04-10 |
| 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 | C09D11/03 | PVGPATDIS, file of 2026-04-10 |
| C09K | Materials for miscellaneous applications, not provided for elsewhere | C09K11/7766 | PVGPATDIS, file of 2026-04-10 |
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N21/00 | PVGPATDIS, file of 2026-04-10 |
| G07D | Handling of coins or valuable papers, e.g. testing, sorting by denominations, counting, dispensing, changing or depositing | G07D7/00 | PVGPATDIS, file of 2026-04-10 |
| H01L | Semiconductor devices not covered by class h10 | H01L23/57 | PVGPATDIS, file of 2026-04-10 |
| H10W | Generic packages, interconnections, connectors or other constructional details of devices covered by class h10 | H10W42/40 | 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 |
|---|---|---|---|---|---|
| 2020-06-03 | Assignment Assignment of assignor's interest | BRACKINS, JULIAN signed 2015-02-27 CROSS, WILLIAM signed 2015-02-27 KELLAR, JON signed 2015-02-27 LANGERMAN, DAVID signed 2015-02-27 MAY, P. STANLEY signed 2015-02-27 MERUGA, JEEVAN signed 2015-02-27 BARIDE, ARAVIND signed 2015-03-02 RAPP, JOHN signed 2015-03-16 | SOUTH DAKOTA BOARD OF REGENTS PIERRE, SD | 52832/60 | 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.