Water Loss Separators Used with Lead Acid Batteries, Systems for Improved Water Loss Performance, and Methods of Manufacture and Use Thereof
A patent family: one line of work, grouped by real continuity rather than by a technology label
inferred from titles. 4 of these applications claim priority to application 62/121,120, filed Feb 26, 2015. A shared origin can cover several different claimed inventions, which is why members here may not share a title. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.
| Patent | Title | Holder | Status | Expires | Time remaining | Confidence |
|---|---|---|---|---|---|---|
| US 12,125,988 | Water Loss Separators Used with Lead Acid Batteries, Systems for Improved Water Loss Performance, and Methods of Manufacture and Use Thereof In force · Low confidence | Daramic, LLC | In force | Low confidence | ||
| US 9,979,054 | Water Loss Separators Used with Lead Acid Batteries, Systems for Improved Water Loss Performance, and Methods of Manufacture and Use Thereof In force · High confidence | Daramic, LLC | In force | High confidence | ||
| US 11,539,084 | Water Loss Separators Used with Lead Acid Batteries, Systems for Improved Water Loss Performance, and Methods of Manufacture and Use Thereof In force · Medium confidence | Daramic, LLC | In force | Medium confidence | ||
| US 10,673,099 | Water Loss Separators Used with Lead Acid Batteries, Systems for Improved Water Loss Performance, and Methods of Manufacture and Use Thereof In force · Medium confidence | Daramic, LLC | In force | Medium confidence |
4 of 4 records shown. In-force patents first, soonest term end first, then patent number. Expired patents follow, in the same order.
Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.