Coorstek Membrane Sciences As
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Feb 2038
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Nov 23, 2026The maintenance fee for Sealing compositions (US 11,655,179) comes due Nov 23, 2026. Unpaid by May 24, 2027, it lapses early.
- 1 fee due Dec 13, 2026The maintenance fee for Process for the manufacture of a solid oxide membrane electrode assembly (US 11,677,088) comes due Dec 13, 2026. Unpaid by Jun 14, 2027, it lapses early.
- 1 fee due Feb 22, 2027The maintenance fee for Sealing compositions (US 11,731,897) comes due Feb 22, 2027. Unpaid by Aug 23, 2027, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
Showing 1 to 5 of 5
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,981,786 | Process for producing compressed hydrogen in a membrane reactor and reactor therefor In force · From the USPTO record | In force | From the USPTO record | |
| US 11,655,179 | Sealing compositions In force · From the USPTO record | In force | From the USPTO record | |
| US 11,677,088 | Process for the manufacture of a solid oxide membrane electrode assembly In force · From the USPTO record | In force | From the USPTO record | |
| US 11,731,897 | Sealing compositions In force · From the USPTO record | In force | From the USPTO record | |
| US 12,723,683 | Adapter to Connect Metal and Ceramic Components and Related Systems In force · High confidence | In force | High confidence |
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
4 pending