2,057 patents currently held
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.
19 more records may belong here and await a decision; they are not counted.
The next term ends in Nov 2026. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
147
Ending by 2030
Nov 2026
Next term end
684
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 2030 · High confidence
Also notable
Ends Dec 2039 · High confidence
Also notable
Ends Aug 2031 · Medium confidence
Block Based Access to a Dispersed Data Storage Network
US 8,285,878
The most cited patent in this portfolio, cited by 1,404 later US patents, top 1% of utility patents granted in 2012 in our data. Protection runs to 2030.
Extensible Attack Monitoring by a Storage System
US 11,651,075
Cited by 75 later US patents, top 1% of utility patents granted in 2023 in our data. Protection runs to 2039.
Optimized Inline Deduplication
US 11,636,031
Cited by 74 later US patents, top 1% of utility patents granted in 2023 in our data. Protection runs to 2031.
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.
- 15 fees due Nov 14 to 30, 2026 · next Nov 14
- 46 fees due Dec 2 to 30, 2026 · next Dec 2
- 55 fees due Jan 2 to 30, 2027 · next Jan 2
- 59 fees due Feb 1 to 28, 2027 · next Feb 1
- 42 fees due Mar 1 to 26, 2027 · next Mar 1
- 62 fees due Apr 1 to 30, 2027 · next Apr 1
- 35 fees due May 3 to 28, 2027 · next May 3
- 60 fees due Jun 1 to 30, 2027 · next Jun 1
- 51 fees due Jul 2 to 30, 2027 · next Jul 2
- 33 fees due Aug 4 to 27, 2027 · next Aug 4
- 52 fees due Sep 1 to 30, 2027 · next Sep 1
- 34 fees due Oct 2 to 30, 2027 · next Oct 2
- 12 fees due Nov 3 to 12, 2027 · next Nov 3
Recent changes
- Nov 9Assignment recorded on 1 record: Tamborski, Patrick A. and 3 others to Pure Storage, Inc. Recorded Nov 9, 2026, executed Nov 5, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76690, frame 192.
- Oct 1Assignment recorded on 1 record: Pure Storage, Inc. to Everpure, Inc. Recorded Oct 1, 2026, executed Feb 20, 2026. Conveyance as recorded: Change of Name. A recorded assignment is a filed document, not a statement of current ownership. Reel 76658, frame 358.
- 49 of the patents on this record were granted since Aug 16, 2026
- 17 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 684 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Ensuring data integrity on a dispersed storage grid | 37 in force | to Apr 2038 |
| Traffic-based Detection of a Security Threat to a Storage System | 32 in force | to Aug 2041 |
| Migrating Workloads Between a Plurality of Execution Environments | 31 in force | to Jul 2040 |
| Storage Cluster | 28 in force | to Nov 2035 |
| Mapping in a Storage System | 22 in force | to Nov 2032 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 12,120,177 | Performance Based Access in a Storage Network In force · Medium confidence | In force | Medium confidence | |
| US 10,211,983 | Resharing of a Split Secret In force · High confidence | In force | High confidence | |
| US 10,887,099 | Data Encryption in a Distributed System In force · Medium confidence | In force | Medium confidence | |
| US 11,489,668 | Secret Regeneration in a Storage System In force · Medium confidence | In force | Medium confidence | |
| US 11,838,412 | Secret Regeneration From Distributed Shares In force · Medium confidence | In force | Medium confidence | |
| US 8,914,669 | Secure Rebuilding of an Encoded Data Slice in a Dispersed Storage Network In force · High confidence | In force | High confidence | |
| US 9,026,758 | Memory Device Utilization in a Dispersed Storage Network In force · High confidence | In force | High confidence | |
| US 10,176,054 | Dispersed Storage Network with Data Segment Backup and Methods for Use Therewith In force · High confidence | In force | High confidence | |
| US 10,142,115 | Distributed Storage Network Data Revision Control In force · High confidence | In force | High confidence | |
| US 7,953,771 | Virtualized Data Storage Vaults on a Dispersed Data Storage Network In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 2,057: 2 patents in force now held by others · 705 patents ended · 419 applications pending · 316 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.