Patents
US 12741890 B2: Silica inhibitors for silica inhibition and dispersion
- Granted
- 2026-09-22
- Filed
- 2023-11-20 application 18514945
- Type
- Utility · 20 claims
- Elsewhere
- Google Patents ↗ · USPTO patent document ↗ · USPTO Patent Center record ↗
Abstract
A silica inhibitor is disclosed for inhibiting silica scale formation and dispersing silica. In one aspect, a method for reducing silica levels in an aqueous system involves obtaining a silica inhibitor with a branched polyethylenimine and treating the aqueous system with the silica inhibitor. In another aspect, a method for preparing a silica inhibitor involves obtaining a branched polyethylenimine and protonating the branched polyethylenimine to attain a charged inhibitor with a high-density cationic state. In yet another aspect, a silica inhibitor includes a branched polyethylenimine, a phosphonate, and optionally one or more of a linear polymer based on polyvinyl alcohol, a linear polymer based on polyacrylic acid, and an architectured material.
Source: PTBLXML, file of 2026-09-22 (ipgb20260922.xml).
Assignees
| Assignee | Type | Place | Also on furp.org | Source |
|---|---|---|---|---|
| Baker Hughes Oilfield Operations LLC 922 patents | US company or organization | Houston, TX | PTBLXML, file of 2026-09-22 |
Inventors
| Inventor | Place | Patents | Person page | Source |
|---|---|---|---|---|
| Mary Jane Felipe | Sugar Land, TX | PTBLXML, file of 2026-09-22 | ||
| Jonathan Vargas | Rosenberg, TX | 2 | PTBLXML, file of 2026-09-22 | |
| Tomasa Ledesma | Houston, TX | 4 | PTBLXML, file of 2026-09-22 | |
| Ramakrishna Ponnapati | Houston, TX | PTBLXML, file of 2026-09-22 | ||
| Sankaran Murugesan | Katy, TX | 43 | PTBLXML, file of 2026-09-22 | |
| Swamy Margan | Conroe, TX | PTBLXML, file of 2026-09-22 |
CPC categories
| Subclass | Category | First group | Source |
|---|---|---|---|
| C02F | Treatment of water, waste water, sewage, or sludge | C02F1/5227 | PTBLXML, file of 2026-09-22 |
Cooperative Patent Classification, as currently assigned (one row per subclass).
Assignments and security interests
No recorded assignments or security interests on file for this patent.
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.