Three patents currently held, every record listed here
2 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jun 2038. from the record
Of the 2 now held by other companies, 2 name Governors of the University of Alberta as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jun 2038
Next term end
2
Patent families
When these terms end
Each bar runs from grant to computed term end. 2022 to 2039.
US 11,749,558
Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device
Jun 29, 2038
US 11,232,976
Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device
Jul 29, 2038
US 11,635,450
Initiating and Monitoring the Evolution of Single Electrons Within Atom-Defined Structures
no later than Sep 28, 2038
20262030203420382039
A dotted end marks a recorded terminal disclaimer this site has not resolved: the term can only be shorter than the bar, never longer.
1 pending application: 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 2 of the currently held patents qualify as notable.
Notable
Ends Jul 2038 · High confidence
Also notable
Ends no later than Sep 2038 · Low confidence
Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device
US 11,232,976
Granted 2022. Computed term ends 2038.
Initiating and Monitoring the Evolution of Single Electrons Within Atom-Defined Structures
US 11,635,450
Granted 2023. Computed term ends 2038. A terminal disclaimer is on file and its reference is not resolved, so no cap is applied and the date may move earlier, never later.
Formerly held, still cited
Notable
Ends Jun 2039 · High confidence
The newest of the three, granted 2023. It anchors the portfolio to 2039, later than anything else here.
now held by The Governors of the University of Alberta
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 Mar 5, 2027The maintenance fee for Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device (US 11,749,558) comes due Mar 5, 2027. Unpaid by Sep 7, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
Grouped by real patent family, largest first, labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
Showing 1 to 3 of 3
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 11,749,558 | Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device In force · High confidence | In force | High confidence | |
| US 11,232,976 | Treating a Silicon on Insulator Wafer in Preparation for Manufacturing an Atomistic Electronic Device Interfaced with a CMOS Electronic Device In force · High confidence | In force | High confidence | |
| US 11,635,450 | Initiating and Monitoring the Evolution of Single Electrons Within Atom-Defined Structures In force · Low confidence | In force | Low confidence |
Also on record, not counted in the 3: 2 patents in force now held by others · 1 application 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.
1 terminal disclaimer is on file with no resolved reference. No cap is applied and none is guessed