Carbon fiber electrode with enhanced active material and lead acid battery having same
US-12542283-B2 · Feb 3, 2026 · US
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Spence Matthew A patents
Spence Matthew A is listed as an inventor on 42 patents in our database. Major assignees and classification codes are summarized below.
| Metric | Value |
|---|---|
| Inventor | Spence Matthew A |
| Total patents | 42 |
| First publication | Dec 24, 2015 |
| Latest publication | Feb 3, 2026 |
Notable patents
Publications ranked by popularity score, then publication date.
Negative mass for lead-acid battery electrodes and lead-acid battery including same
US-2025233126-A1 · Jul 17, 2025 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-2025226473-A1 · Jul 10, 2025 · US
Absorbent glass mat battery
US-12288897-B2 · Apr 29, 2025 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-12278352-B2 · Apr 15, 2025 · US
Negative mass for lead-acid battery electrodes and lead-acid battery including same
US-12266783-B2 · Apr 1, 2025 · US
Absorbent glass mat battery
US-2024222600-A1 · Jul 4, 2024 · US
Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US-2024194962-A1 · Jun 13, 2024 · US
Absorbent glass mat battery
US-2024186652-A1 · Jun 6, 2024 · US
Absorbent glass mat battery
US-11936032-B2 · Mar 19, 2024 · US
Recent patents
Latest publications not already listed above.
Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US-11923518-B2 · Mar 5, 2024 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-2024021905-A1 · Jan 18, 2024 · US
Absorbent glass mat battery
US-11870096-B2 · Jan 9, 2024 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-11791505-B2 · Oct 17, 2023 · US
Absorbent glass mat battery
US-2023057730-A1 · Feb 23, 2023 · US
Carbon fiber electrode with enhanced active material and lead acid battery having same
US-2023052472-A1 · Feb 16, 2023 · US
Absorbent glass mat battery
US-11411280-B2 · Aug 9, 2022 · US
Negative mass for lead-acid battery electrodes and lead-acid battery including same
US-2021336249-A1 · Oct 28, 2021 · US
Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US-11005129-B2 · May 11, 2021 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-2020411921-A1 · Dec 31, 2020 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-10777858-B2 · Sep 15, 2020 · US
Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US-2020235443-A1 · Jul 23, 2020 · US
Absorbent glass mat battery
US-2020106070-A1 · Apr 2, 2020 · US
Absorbent glass mat battery
US-2020052286-A1 · Feb 13, 2020 · US
Systems and methods for closed-loop recycling of a liquid component of a leaching mixture when recycling lead from spent lead-acid batteries
US-10403940-B2 · Sep 3, 2019 · US
Systems and methods for purifying and recycling lead from spent lead-acid batteries
US-10122052-B2 · Nov 6, 2018 · US
Hydrometallurgical electrowinning of lead from spent lead-acid batteries
US-10062933-B2 · Aug 28, 2018 · US
Methods for purifying and recycling lead from spent lead-acid batteries
US-2017338530-A1 · Nov 23, 2017 · US
Systems and methods for purifying and recycling lead from spent lead-acid batteries
US-2017338531-A1 · Nov 23, 2017 · US
Systems and methods for purifying and recycling lead from spent lead-acid batteries
US-9757702-B2 · Sep 12, 2017 · US
Major assignees
Companies most often associated with this inventor's publications.
| Assignee | Patents |
|---|---|
| Cps Tech Holdings Llc | 25 |
| Johnson Controls Tech Co | 18 |
| Clarios Germany Gmbh & Co Kg | 11 |
| Clarios Germany Gmbh & Co Kgaa | 4 |
| Johnson Controls Autobatterie Gmbh & Co Kgaa | 4 |
Top CPC classifications
Most common classification codes across this inventor's patents.
| CPC | Patents |
|---|---|
| Y02W30/84 | 28 |
| H01M10/54 | 28 |
| C22B13/045 | 28 |
| Y02P10/20 | 26 |
| H01M6/52 | 24 |