Patents
US 10955341 B2: Optical nitrate sensor compensation algorithm for multiparameter water quality measurement
- Granted
- 2021-03-23
- Filed
- 2017-03-09 application 15454465
- Type
- Utility · 13 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
An optical nitrate sensor features a signal processor or signal processing module configured to:
Source: PVGPATDIS, file of 2026-04-10 (ipg210323.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| YSI, INC. 24 patents | US company or organization | Yellow Springs, OH | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Christopher J. Palassis | Yellow Springs, OH | 6 | PVGPATDIS, file of 2026-04-10 | |
| Melanie C. K. Poon | Centerville, OH | 1 | PVGPATDIS, file of 2026-04-10 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| G01N | Investigating or analysing materials by determining their chemical or physical properties | G01N21/59 | PVGPATDIS, file of 2026-04-10 |
| G01J | Measurement of intensity, velocity, spectral content, polarisation, phase or pulse characteristics of infrared, visible or ultraviolet light; colorimetry; radiation pyrometry | G01J1/42 | 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 |
|---|---|---|---|---|---|
| 2017-07-24 | Assignment Assignment of assignor's interest | PALASSIS, CHRISTOPHER JOHN signed 2017-06-27 POON, MELANIE C.K. signed 2017-06-27 | YSI, INC. YELLOW SPRINGS, OH | 43075/134 | 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.