Electrochemical water deionization separators
US-12503380-B2 · Dec 23, 2025 · US
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Hellstrom Sondra patents
Hellstrom Sondra is listed as an inventor on 71 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Hellstrom Sondra |
| Total patents | 71 |
| First publication | Dec 15, 2015 |
| Latest publication | Dec 23, 2025 |
Notable patents
Publications ranked by popularity score, then publication date.
Water softening intercalation materials
US-12381287-B2 · Aug 5, 2025 · US
Coated fuel cell catalyst materials
US-12334566-B2 · Jun 17, 2025 · US
On-demand water treatment system
US-12330973-B2 · Jun 17, 2025 · US
Deionization system with heat management
US-12330966-B2 · Jun 17, 2025 · US
Cascading, recirculating water deionization systems
US-2025178934-A1 · Jun 5, 2025 · US
Electrodialysis deionization battery cells
US-12234164-B2 · Feb 25, 2025 · US
Water deionization cells
US-12195366-B2 · Jan 14, 2025 · US
Water deionization cells with flow channels packed with intercalation material
US-12172908-B2 · Dec 24, 2024 · US
Desalination device electrode activation
US-12151958-B2 · Nov 26, 2024 · US
Recent patents
Latest publications not already listed above.
Desalination device
US-2024294408-A1 · Sep 5, 2024 · US
Electrostatic charging air cleaning device and collection electrode
US-11958061-B2 · Apr 16, 2024 · US
Conversion materials for electrochemical water softening
US-11884560-B2 · Jan 30, 2024 · US
Conversion materials for electrochemical removal of chloride-containing salts from water
US-11884561-B2 · Jan 30, 2024 · US
Anion insertion electrode materials for desalination water cleaning device
US-11834354-B2 · Dec 5, 2023 · US
Voltage-controlled anion exchange membrane enabling selective ion affinities for water desalination and device containing the same
US-11820681-B2 · Nov 21, 2023 · US
Desalination methods in desalination electrodes
US-2023365443-A1 · Nov 16, 2023 · US
Electrodialysis deionization battery cells
US-2023202886-A1 · Jun 29, 2023 · US
Electrochemical water cleaning device
US-11597663-B2 · Mar 7, 2023 · US
Intercalation-based materials and processes for softening water
US-11597661-B2 · Mar 7, 2023 · US
Electrochemical water deionization separators
US-2023068559-A1 · Mar 2, 2023 · US
Cascading, recirculating water deionization systems
US-2023067116-A1 · Mar 2, 2023 · US
On-demand water treatment system
US-2023064773-A1 · Mar 2, 2023 · US
Deionization system with heat management
US-2023063865-A1 · Mar 2, 2023 · US
Water softening intercalation systems
US-2023059547-A1 · Feb 23, 2023 · US
Water softening intercalation materials
US-2023054443-A1 · Feb 23, 2023 · US
Water deionization cells with flow channels packed with intercalation material
US-2023050274-A1 · Feb 16, 2023 · US
Water deionization cells
US-2023048716-A1 · Feb 16, 2023 · US
Electrostatic charging air cleaning device and collection electrode
US-2023047164-A1 · Feb 16, 2023 · US
Solid composite electrode with coated materials
US-11527754-B2 · Dec 13, 2022 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Bosch Gmbh Robert | 70 |
| Seeo Inc | 4 |
| Univ California | 2 |
| Univ Leland Stanford Junior | 1 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| C02F2103/08 | 29 |
| C02F2201/46115 | 29 |
| C02F1/4691 | 27 |
| C02F1/4604 | 24 |
| C02F2001/46133 | 23 |