Patents
US 10244938 B1: Vision testing system and method
- Granted
- 2019-04-02
- Filed
- 2016-04-28 application 15141575
- Type
- Utility · 18 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A method of vision testing includes providing a display, presenting a first chart of optotypes wherein each line progressively decreases in size or in contrast of the optotype relative to a background. The method includes having a patient identify and read the optotypes, noting which line of optotypes at which the patient can correctly identify all of the optotypes in the first chart, confirming that the patient has correctly identified all of the optotypes in the line of the first chart, and then presenting a second chart of optotypes wherein each line of the second chart progressively decreases in one of size or in contrast of the optotype relative to a background. The size or contrast of the noted line of optotypes from the first chart that the patient correctly identified is presented as either a first line of optotypes or a second line of optotypes on the second chart.
Source: PVGPATDIS, file of 2026-04-10 (ipg190402.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| MS TECHNOLOGIES 253 patents | US company or organization | Niles, IL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Joseph A. Marino | Paddy Lane, IL | 8 | PVGPATDIS, file of 2026-04-10 | |
| Kevin A. Butler | Downers Grove, IL | 9 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| A61B | Diagnosis; surgery; identification | A61B3/032 | 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 |
|---|---|---|---|---|---|
| 2021-08-12 | Assignment Assignment of assignor's interest | M&S TECHNOLOGIES, INC. signed 2020-12-31 | THE HILSINGER COMPANY PARENT, LLC PLAINVILLE, MA | 57162/305 | ECORSEXC, file of 2026-09-25 |
| 2018-10-18 | Assignment Assignment of assignor's interest | BUTLER, KEVIN A. signed 2018-10-16 MARINO, JOSEPH A. signed 2018-10-16 | M&S TECHNOLOGIES, INC. NILES, IL | 47221/306 | 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.