Two patents currently held, every record listed here
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Mar 2039. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Mar 2039
Next term end
1
Patent families
When these terms end
Each bar runs from grant to computed term end. 2023 to 2039.202620292032203520382039
5 pending applications: term is not computable until grant.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
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Only 1 of the currently held patents qualifies as notable.
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 Dec 20, 2026The maintenance fee for Superconducting Compounds and Methods for Making the Same (US 11,683,997) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
| Superconducting Compounds and Methods for Making the Same | 2 in force | to Mar 2039 |
Patents held now
Soonest term end first.
Showing 1 to 2 of 2
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,683,997 | Superconducting Compounds and Methods for Making the Same In force · High confidence | In force | High confidence | |
| US 12,733,409 | Superconducting Compounds and Methods for Making the Same In force · High confidence | In force | High confidence |
Also on record, not counted in the 2: 5 applications pending. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.