655 patents currently held
14 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 Jan 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
73
Ending by 2030
Jan 2027
Next term end
618
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 Apr 2036 · High confidence
Also notable
Ends May 2031 · High confidence
Also notable
Ends Mar 2030 · High confidence
Integrated Circuit and Code Generating Method
US 9,966,467
Cited by 11 later US patents, top 25% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2036.
Methods of Calculating Compensation Voltage and Adjusting Threshold Voltage and Memory Apparatus and Controller
US 8,386,860
Cited by 23 later US patents, top 25% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Method for Preventing Read-Disturb Happened in Non-Volatile Memory and Controller Thereof
US 8,055,834
Renewed at every maintenance window since the 2011 grant; no more fees are due before its term ends in 2030.
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.
- 14 fees due Dec 4 to 27, 2026 · next Dec 4
- 6 fees due Jan 2 to 21, 2027 · next Jan 2
- 3 fees due Feb 4 to 25, 2027 · next Feb 4
- 22 fees due Mar 1 to 29, 2027 · next Mar 1
- 8 fees due Apr 6 to 29, 2027 · next Apr 6
- 8 fees due May 3 to 28, 2027 · next May 3
- 14 fees due Jun 1 to 30, 2027 · next Jun 1
- 11 fees due Jul 5 to 30, 2027 · next Jul 5
- 13 fees due Aug 9 to 23, 2027 · next Aug 9
- 13 fees due Sep 1 to 29, 2027 · next Sep 1
- 24 fees due Oct 5 to 30, 2027 · next Oct 5
- 2 fees due Nov 7 to 10, 2027 · next Nov 7
Recent changes
- 3 of the patents on this record were granted since Aug 16, 2026
- 1 term has ended since Aug 16, 2026
What they patent
The 5 largest of its 618 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Integrated Circuit and Code Generating Method | 4 in force | to Apr 2036 |
| Data Accessing Method for Flash Memory Storage Device Having Data Perturbation Module, and Storage System and Controller Using the Same | 4 in force | to Feb 2031 |
| Memory Control Circuit Unit, Memory Storage Device and Reference Voltage Generation Method | 3 in force | to Aug 2036 |
| Memory Storage Device Having Clock and Data Recovery Circuit | 3 in force | to Jun 2035 |
| Non-Volatile Memory Device and Operation and Fabricating Methods Thereof | 3 in force | to Jan 2034 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,441,068 | Flash Memory and Method for Utilizing the Same In force · High confidence | In force | High confidence | |
| US RE46,871 | Universal Serial Bus (USB) Memory Device In force · Low confidence | In force | Low confidence | |
| US RE48,179 | Universal Serial Bus (USB) Memory Device In force · Low confidence | In force | Low confidence | |
| US 7,949,929 | Controller and Storage Device Having the Same In force · Medium confidence | In force | Medium confidence | |
| US 7,740,494 | Data Storage Apparatus In force · High confidence | In force | High confidence | |
| US 7,574,470 | Multimedia Data Processing Method In force · High confidence | In force | High confidence | |
| US 7,672,122 | Flash Memory Disk with Rotatable and Telescopic Protection Structure and Method Using the Same In force · High confidence | In force | High confidence | |
| US 8,583,860 | Block Management Method for Flash Memory and Controller and Storage Sysetm Using the Same In force · High confidence | In force | High confidence | |
| US 7,778,037 | Dual-Interface Data Storage Apparatus In force · High confidence | In force | High confidence | |
| US 7,736,947 | Method Using a Carrier for Manufacturing a Memory Device and Manufacturing Method of a Memory Device Using the Same and Memory Device Using the Same In force · High confidence | In force | High confidence |
Also on record, not counted in the 655: 14 patents in force now held by others · 16 patents ended · 23 applications pending · 72 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.