1,064 patents currently held
9 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.
27 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.
286
Ending by 2030
Nov 2026
Next term end
852
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 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 Oct 2028 · High confidence
Also notable
Ends Nov 2034 · High confidence
Also notable
Ends Jul 2035 · High confidence
System and Method for Maintaining a Backup Storage System for a Computer System
US 7,844,577
The most cited patent in this portfolio, cited by 408 later US patents, top 1% of utility patents granted in 2010 in our data. Protection runs to 2028.
Making More Active Use of a Secondary Storage System
US 9,921,769
Cited by 95 later US patents, top 5% of utility patents granted in 2018 in our data, and renewed at every maintenance window due so far. Protection runs to 2034.
Backup Operations in a Tree-Based Distributed File System
US 9,720,947
Cited by 175 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2035.
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 Nov 21, 2026The maintenance fee for Dynamic Throughput Ingestion of Backup Sources (US 10,298,680) comes due Nov 21, 2026. Unpaid by May 21, 2027, it lapses early.
- 17 fees due Dec 4 to 27, 2026 · next Dec 4
- 26 fees due Jan 2 to 30, 2027 · next Jan 2
- 16 fees due Feb 6 to 28, 2027 · next Feb 6
- 23 fees due Mar 1 to 29, 2027 · next Mar 1
- 18 fees due Apr 1 to 30, 2027 · next Apr 1
- 16 fees due May 3 to 28, 2027 · next May 3
- 14 fees due Jun 8 to 30, 2027 · next Jun 8
- 28 fees due Jul 2 to 30, 2027 · next Jul 2
- 16 fees due Aug 2 to 27, 2027 · next Aug 2
- 17 fees due Sep 1 to 30, 2027 · next Sep 1
- 13 fees due Oct 2 to 30, 2027 · next Oct 2
- 9 fees due Nov 3 to 14, 2027 · next Nov 3
Recent changes
- 7 of the patents on this record were granted since Aug 17, 2026
- 15 terms have ended since Aug 17, 2026
What they patent
The 5 largest of its 852 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Making More Active Use of a Secondary Storage System | 8 in force | to Sep 2041 |
| Large Content File Optimization | 7 in force | to Dec 2038 |
| Remotely Mounted File System with Stubs | 5 in force | to Sep 2038 |
| Methods and Systems Relating to Network Based Storage | 4 in force | to Jun 2039 |
| Integrated Hierarchical Storage Management | 4 in force | to Aug 2038 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,433,928 | A System Pre-Allocating Data Object Replicas for a Distributed File Sharing System In force · High confidence | In force | High confidence | |
| US 7,509,468 | Policy-Based Data Protection In force · High confidence | In force | High confidence | |
| US 7,467,265 | System and Method for Block Conflict Resolution Within Consistency Interval Marker Based Replication In force · High confidence | In force | High confidence | |
| US 8,041,675 | Method for Performing Incremental Backup of Database Files In force · High confidence | In force | High confidence | |
| US 9,262,433 | Virtualization of File Input/Output Operations In force · High confidence | In force | High confidence | |
| US 7,549,037 | Efficient Off-Host Backup of a File Set Clone In force · High confidence | In force | High confidence | |
| US 7,552,358 | Efficient Backup and Restore Using Metadata Mapping In force · High confidence | In force | High confidence | |
| US 7,489,782 | Registry Restore to Original Hardware In force · High confidence | In force | High confidence | |
| US 10,445,185 | Version Mapped Incremental Backups In force · Low confidence | In force | Low confidence | |
| US 7,865,471 | Apparatus and Method for Accelerating Database Recovery In force · High confidence | In force | High confidence |
Also on record, not counted in the 1,064: 9 patents in force now held by others · 211 patents ended · 27 applications pending · 2 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.