95 patents currently held

478 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.

123 more records may belong here and await a decision; they are not counted.

The next term ends in Dec 2026. from the record

Of the 478 now held by other companies, 413 name SanDisk Technologies Inc. as their current owner, and 65 more name another party. Each row says which.

Free plan: 3 watched companies. Pro: unlimited.

Alerts on its grants, lapses and transfers.

Ending by 2030

Dec 2026

Next term end

Patent families

When these terms end

5 yrs10 yrs20 yrs

Held patents by the year their term ends

2026 2027 2028 2029 2030 203120322033203420352036203720382039204020412042204320442045

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

Method for Implementing Error-Correction Codes in Flash Memory US 7,783,955

The most cited patent in this portfolio, cited by 186 later US patents, top 5% of utility patents granted in 2010 in our data. Protection runs to 2028.

Ends May 2028 · High confidence Also notable

Data Usage Profiling by Local Storage Device US 10,289,349

Cited by 29 later US patents, top 10% of utility patents granted in 2019 in our data, and renewed at 2 of 3 maintenance windows. Protection runs to 2037.

Ends Mar 2037 · High confidence Also notable

Method and System for Balancing Host Write Operations and Cache Flushing US 7,865,658

Cited by 44 later US patents, top 25% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.

Ends Mar 2029 · High confidence

Formerly held, still cited

Notable

Ultrahigh Density Monolithic, Three Dimensional Vertical NAND Memory Device US 8,349,681

The most cited patent in this portfolio, cited by 583 later US patents, top 1% of utility patents granted in 2013 in our data. Protection runs to 2031.

now held by SanDisk Technologies, Inc.

Ends May 2031 · High confidence

Also notable

Non-Volatile Memory And Method With Post-Write Read And Adaptive Re-Write To Manage Errors US 8,423,866

Cited by 196 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.

now held by SanDisk Technologies, Inc.

Ends Mar 2031 · High confidence

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 Jan 7, 2027
The maintenance fee for Backing Up Digital Content That Is Stored in a Secured Storage Device (US 9,075,957) comes due Jan 7, 2027. Unpaid by Jul 7, 2027, it lapses early.
1 fee due Mar 15, 2027
The maintenance fee for Local Proxy System and Method (US 9,137,249) comes due Mar 15, 2027. Unpaid by Sep 15, 2027, it lapses early.
1 fee due May 24, 2027
The maintenance fee for High-capacity SIM storage control (US 9,198,025) comes due May 24, 2027. Unpaid by Nov 24, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

42 terms have ended since Aug 16, 2026

What they patent

The 5 largest of its 87 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.

Dual Mode Digital Multimedia Connector	3 in force	to Jul 2031
Storage Device with Transaction Logging Capability	2 in force	to Jun 2029
Reverse Order Page Writing in Flash Memories	2 in force	to May 2029
Wearable Device for Adaptively Recording Signals	2 in force	to Apr 2029
Management of Internal Operations by a Storage Device	2 in force	to Feb 2029

Patents held now

Soonest term end first.

Patent	Title	Status	Expires	Confidence
US 7,644,224	Flash Memory Device and Method held by SanDisk Israel Ltd. In force Term ends Dec 30, 2026 · High confidence	In force	Term ends Dec 30, 2026	High confidence
US 7,461,742	Package for a Portable USB Storage Device held by SanDisk Israel Ltd. In force Term ends Jan 15, 2027 · High confidence	In force	Term ends Jan 15, 2027	High confidence
US 7,464,193	Device and Method for Configuring a Flash Memory Controller held by SanDisk Israel Ltd. In force Term ends Jan 16, 2027 · High confidence	In force	Term ends Jan 16, 2027	High confidence
US 9,116,791	Method for Flash-Memory Management held by SanDisk Israel Ltd. In force Term ends Feb 4, 2027 · High confidence	In force	Term ends Feb 4, 2027	High confidence
US 8,041,879	Flash Memory Backup System and Method held by SanDisk Israel Ltd. In force Term ends Feb 20, 2027 · High confidence	In force	Term ends Feb 20, 2027	High confidence
US 7,823,043	Corruption-Resistant Data Porting with Multiple Error Correction Schemes held by SanDisk Israel Ltd. In force Term ends Mar 15, 2027 · High confidence	In force	Term ends Mar 15, 2027	High confidence
US 7,876,334	Photography with Embedded Graphical Objects held by SanDisk Israel Ltd. In force Term ends Apr 2, 2027 · High confidence	In force	Term ends Apr 2, 2027	High confidence
US 7,512,847	Method for Estimating and Reporting the Life Expectancy of Flash-Disk Memory held by SanDisk Israel Ltd. In force Term ends May 2, 2027 · High confidence	In force	Term ends May 2, 2027	High confidence
US 8,135,904	Method and Apparatus for Facilitating Fast Wake-Up of a Non-Volatile Memory System held by SanDisk Israel Ltd. In force Term ends Jun 11, 2027 · High confidence	In force	Term ends Jun 11, 2027	High confidence
US 7,716,400	Dual Mode Digital Multimedia Connector held by SanDisk Israel Ltd. In force Term ends Aug 18, 2027 · High confidence	In force	Term ends Aug 18, 2027	High confidence

10 of 95 patents shown.

Pro members see all 95.

Pro members: see all 95 patents

Also on record, not counted in the 95: 478 patents in force now held by others · 917 patents ended · 267 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.

Export every term end as CSV · Pro

SanDisk, Inc.