1,880 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Dec 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
8
Ending by 2030
Dec 2026
Next term end
1,871
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
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: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Nov 2040 · High confidence
Also notable
Ends Aug 2041 · High confidence
Also notable
Ends Dec 2039 · High confidence
Method for Reading and Writing and Memory Device
US 11,527,301
Cited by 7 later US patents, top 25% of utility patents granted in 2022 in our data. Protection runs to 2040.
Error Correction System
US 11,599,417
Cited by 5 later US patents, top 25% of utility patents granted in 2023 in our data. Protection runs to 2041.
Data Sampling Circuit and Data Sampling Device
US 11,388,030
The earliest of the three still in force, granted 2022 and renewed since. Its term ends first, in 2039. A terminal disclaimer caps this term to an earlier patent's.
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.
- 12 fees due Dec 6 to 27, 2026 · next Dec 6
- 18 fees due Jan 4 to 25, 2027 · next Jan 4
- 17 fees due Feb 1 to 22, 2027 · next Feb 1
- 6 fees due Mar 5 to 26, 2027 · next Mar 5
- 42 fees due Apr 3 to 30, 2027 · next Apr 3
- 33 fees due May 7 to 28, 2027 · next May 7
- 61 fees due Jun 5 to 26, 2027 · next Jun 5
- 129 fees due Jul 2 to 30, 2027 · next Jul 2
- 49 fees due Aug 6 to 27, 2027 · next Aug 6
- 55 fees due Sep 5 to 26, 2027 · next Sep 5
- 33 fees due Oct 2 to 30, 2027 · next Oct 2
- 22 fees due Nov 7, 2027
Recent changes
- 36 of the patents on this record were granted since Aug 16, 2026
- 4 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 1,871 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Data Sampling Circuit and Data Sampling Device | 3 in force | to Dec 2039 |
| Semiconductor Structures of Anti-Fuse Devices and Core Devices with Different Dielectric Layers and Preparation Method Thereof | 2 in force | to Jun 2042 |
| Memory with Error Checking and Correcting Unit | 2 in force | to Apr 2042 |
| Read/Write Switching Circuit and Memory | 2 in force | to Jul 2041 |
| Driving Circuit | 2 in force | to Feb 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,457,913 | Finding a Data Pattern in a Memory In force · Medium confidence | In force | Medium confidence | |
| US 8,003,538 | Method for Producing a Structure on the Surface of a Substrate In force · High confidence | In force | High confidence | |
| US 7,564,114 | Semiconductor Devices and Methods of Manufacture Thereof In force · High confidence | In force | High confidence | |
| US 7,679,125 | Back-Gated Semiconductor Device with a Storage Layer and Methods for Forming Thereof In force · High confidence | In force | High confidence | |
| US 8,158,485 | Integrated Circuit Device Having Openings in a Layered Structure In force · High confidence | In force | High confidence | |
| US 8,178,927 | Integrated Circuits Having a Contact Structure Having an Elongate Structure and Methods for Manufacturing the Same In force · High confidence | In force | High confidence | |
| US 8,120,182 | Integrated Circuit Comprising Conductive Lines and Contact Structures and Method of Manufacturing an Integrated Circuit In force · High confidence | In force | High confidence | |
| US 8,241,989 | Integrated Circuit with Stacked Devices In force · High confidence | In force | High confidence | |
| US 8,541,786 | Packaged Semiconductor Device Having Improved Locking Properties In force · High confidence | In force | High confidence | |
| US 11,063,136 | Semiconductor Device Structures with Composite Spacers and Fabrication Methods Thereof In force · High confidence | In force | High confidence |
Also on record, not counted in the 1,880: 80 patents ended · 72 applications pending · 429 applications abandoned. 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.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.