292 patents currently held
21 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.
9 more records may belong here and await a decision; they are not counted.
The next term ends in Feb 2027. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
13
Ending by 2030
Feb 2027
Next term end
241
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 Jun 2034 · High confidence
Also notable
Ends Mar 2028 · High confidence
Also notable
Ends Jan 2039 · High confidence
Hot Recovery of Virtual Machines
US 9,760,448
Cited by 84 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 2034.
System and Method for Efficient Backup Using Hashes
US 7,636,824
Cited by 90 later US patents, top 10% of utility patents granted in 2009 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2028.
System and Method for Data Classification During File Backup
US 11,237,913
Cited by 13 later US patents, top 10% of utility patents granted in 2022 in our data. Protection runs to 2039.
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.
- 2 fees due Dec 20, 2026
- 7 fees due Jan 11 to 25, 2027 · next Jan 11
- 7 fees due Feb 8 to 28, 2027 · next Feb 8
- 4 fees due Mar 10 to 19, 2027 · next Mar 10
- 6 fees due Apr 1 to 17, 2027 · next Apr 1
- 2 fees due May 5 to 21, 2027 · next May 5
- 4 fees due Jun 5 to 26, 2027 · next Jun 5
- 2 fees due Jul 16, 2027
- 3 fees due Aug 6 to 27, 2027 · next Aug 6
- 3 fees due Sep 5 to 19, 2027 · next Sep 5
- 3 fees due Oct 23 to 30, 2027 · next Oct 23
- 1 fee due Nov 7, 2027The maintenance fee for Augmented machine learning malware detection based on static and dynamic analysis (US 11,977,633) comes due Nov 7, 2027. Unpaid by May 8, 2028, it lapses early.
Recent changes
- Nov 4Assignment recorded on 1 record: Gurin, Petr and 4 others to Acronis International GmbH Recorded Nov 4, 2026, executed May 28, 2024. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76621, frame 856.
- Oct 7Assignment recorded on 1 record: Qunaibi, Sara and 4 others to Acronis International GmbH Recorded Oct 7, 2026, executed Oct 6, 2026. Conveyance as recorded: Assignment of Assignor's Interest. A recorded assignment is a filed document, not a statement of current ownership. Reel 76286, frame 118.
- 12 of the patents on this record were granted since Aug 16, 2026
- 2 terms have ended since Aug 16, 2026
What they patent
The 5 largest of its 241 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Hot Recovery of Virtual Machines | 8 in force | to Jan 2035 |
| System and Method for Efficient Backup Using Hashes | 4 in force | to Mar 2028 |
| Systems and Methods for Verifying User Identity Based on a Chain of Events | 3 in force | to Dec 2042 |
| Systems and Methods for Optimized Execution of Program Operations on Cloud-Based Services | 3 in force | to Oct 2042 |
| Protecting Against Malware Code Injections in Trusted Processes | 3 in force | to Jan 2041 |
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,831,789 | Method and System for Fast Incremental Backup Using Comparison of Descriptors In force · Medium confidence | In force | Medium confidence | |
| US 7,886,120 | System and Method for Efficient Backup Using Hashes In force · Medium confidence | In force | Medium confidence | |
| US 8,484,427 | System and Method for Efficient Backup Using Hashes In force · Medium confidence | In force | Medium confidence | |
| US 8,996,830 | System and Method for Efficient Backup Using Hashes In force · Medium confidence | In force | Medium confidence | |
| US 7,636,824 | System and Method for Efficient Backup Using Hashes In force · High confidence | In force | High confidence | |
| US 8,005,797 | File-Level Continuous Data Protection with Access to Previous Versions In force · Medium confidence | In force | Medium confidence | |
| US 8,312,259 | System and Method for Booting a Computer from Backup In force · High confidence | In force | High confidence | |
| US 8,073,815 | Backup Server Architecture In force · High confidence | In force | High confidence | |
| US 8,051,044 | Method and System for Continuous Data Protection In force · High confidence | In force | High confidence | |
| US 8,296,264 | Method and System for File-Level Continuous Data Protection In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 292: 21 patents in force now held by others · 51 patents ended · 27 applications pending · 14 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.