Patents
US 11815463 B1: Reagent synthesis and testing assays to detect and quantify manganese (II)
- Granted
- 2023-11-14
- Filed
- 2020-06-29 application 16915467
- Type
- Utility · 15 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
The present disclosure relates to methods of detecting manganese in a solution using resacetophenone oxime by spectrophotometric analysis wherein the resacetophenone oxime produces colorimetric responses to indicate the presence of manganese. The resacetophenone oxime is not only stable in solution, but it also may be inserted into a hydrocolloid gel to facilitate a “spot test” for the detection of manganese, resulting in a long shelf life. These manganese testing methods disclosed herein may be used at the pre-disinfection process at water treatment facilities. The disclosed methods of manganese testing may be combined with an ammoniacal buffer reagent that may be used by water processing facilities, prior to final disinfection, to augment existing manganese (II) efforts of removal. A secondary flocculation with this buffer will scavenge additional manganese (II), that can then be removed by sedimentation or filtration.
Source: PVGPATDIS, file of 2026-04-10 (ipg231114.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Board of Trustees of the Univeristy of Alabama, for and on behalf of the University of Alabama in Huntsville 88 patents | US company or organization | Huntsville, AL | PVGPATDIS, file of 2026-04-10 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Anna Merritt Holmes | Madison, AL | 2 | PVGPATDIS, file of 2026-04-10 | |
| Emanuel A. Waddell, Jr. | Madison, AL | 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 | G01N21/78 | PVGPATDIS, file of 2026-04-10 |
| C08K | Use of inorganic or non-macromolecular organic substances as compounding ingredients | C08K5/29 | PVGPATDIS, file of 2026-04-10 |
| C08L | Compositions of macromolecular compounds | C08L5/00 | 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 |
|---|---|---|---|---|---|
| 2022-08-24 | Assignment Assignment of assignor's interest | WADDELL, EMANUEL AUSTIN signed 2021-12-15 HOLMES, ANNA MERRITT signed 2021-12-16 | BOARD OF TRUSTEES OF THE UNIVERSITY OF ALABAMA, FOR AND ON BEHALF OF THE UNIVERSITY OF ALABAMA IN HUNTSVILLE HUNTSVILLE, AL | 60882/704 | 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.