Also listed on Bakbone Software, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jun 8, 2025 (Alter Domus (US) LLC).
Term ends Mar 31, 2028 · High confidence
20-year base term ends Mar 31, 2028
Held by Quest Software Inc.
Filed Sep 23, 2011 as application 13/242,916 · Granted Jan 8, 2013
Base term, 20 years from filing
Today
2008
2028
Clock starts
Mar 31, 2008
Mar 31, 2008
Term ends
Mar 31, 2028
Mar 31, 2028
Granted
Jan 8, 2013
Jan 8, 2013
base term
fee events
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
None
Term adjustment
No prosecution delay on this record.
None
Terminal disclaimer
No disclaimer on this record.
3 of 3
Maintenance fees paid
Three maintenance fees fall due, at 3.5, 7.5 and 11.5 years from grant. This counts the ones the record shows paid.
3
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
This patent's term is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees are recorded paid; no more fees are due. Confidence: High. from the record
How we calculated this date
One row per rule, each showing its own input and what it did to the date. A step we could not verify says so instead of resolving itself.
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Mar 31, 2008, when application 12/059,505, the earliest non-provisional in its chain, was filed (this one was filed Sep 23, 2011) | Mar 31, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | None on record | no cap applied | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Mar 31, 2028 | High confidence |
This family
| US 8,131,723 | Lapsed on the fee record Mar 2020 | Mar 2020 |
| US 8,352,523 | this patent Mar 2028 | Mar 2028 |
| US 8,972,347 | In force Mar 2028 | Mar 2028 |
The applications whose file history this site holds. The family may have others.
Assignments
The 40 most recent of 84 recorded documents are shown; the 44 earliest are not. Assignment documents as recorded at the USPTO, oldest first, with the reel and frame each was recorded at. A recorded assignment is a filed document, not a statement of current ownership, and the absence of a later one is not evidence that the last one still stands.
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Dell USA L.P. | Release of Security Interest |
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Dell Software Inc. | Release of Security Interest |
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | FORCE10 Networks, Inc. | Release of Security Interest |
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Perot Systems Corporation | Release of Security Interest |
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Secureworks, Inc. | Release of Security Interest |
| Sep 14, 2016 reel/frame not recorded | Bank of New York Mellon Trust Company, N.A., as Collateral Agent | Wyse Technology L.L.C. | Release of Security Interest |
| Oct 31, 2016 Reel 40521, frame 16 | The Bank of New York Mellon Trust Company, N.A. | Aventail LLC; Dell Products L.P.; Dell Software Inc. | Release of Security Interest in Certain Patents Previously Recorded at Reel/Frame (040039/0642) |
| Oct 31, 2016 Reel 40521, frame 467 | Credit Suisse AG, Cayman Islands Branch | Aventail LLC; Dell Products, L.p.; Dell Software Inc. | Release of Security Interest |
| Oct 31, 2016 reel/frame not recorded | The Bank of New York Mellon Trust Company, N.A. | Aventail LLC | Release of Security Interest in Certain Patents Previously Recorded at Reel/Frame (040039/0642) |
| Oct 31, 2016 reel/frame not recorded | The Bank of New York Mellon Trust Company, N.A. | Dell Products L.P. | Release of Security Interest in Certain Patents Previously Recorded at Reel/Frame (040039/0642) |
| Oct 31, 2016 reel/frame not recorded | The Bank of New York Mellon Trust Company, N.A. | Dell Software Inc. | Release of Security Interest in Certain Patents Previously Recorded at Reel/Frame (040039/0642) |
| Oct 31, 2016 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch | Aventail LLC | Release of Security Interest |
| Oct 31, 2016 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch | Dell Products, L.p. | Release of Security Interest |
| Oct 31, 2016 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch | Dell Software Inc. | Release of Security Interest |
| Nov 9, 2016 Reel 40581, frame 850 | Dell Software Inc. | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | First Lien Patent Security Agreement |
| Nov 10, 2016 Reel 40587, frame 624 | Dell Software Inc. | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Second Lien Patent Security Agreement |
| Nov 28, 2017 Reel 44811, frame 598 | Credit Suisse AG, Cayman Islands Branch | Quest Software Inc. (F/K/A Dell Software Inc.); Aventail LLC | Corrective Assignment to Correct the Assignee Previously Recorded at Reel: 040587 Frame: 0624. Assignor(S) Hereby Confirms the Assignment. |
| Nov 28, 2017 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch | Quest Software Inc. (F/K/A Dell Software Inc.) | Corrective Assignment to Correct the Assignee Previously Recorded at Reel: 040587 Frame: 0624. Assignor(S) Hereby Confirms the Assignment. |
| Nov 28, 2017 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch | Aventail LLC | Corrective Assignment to Correct the Assignee Previously Recorded at Reel: 040587 Frame: 0624. Assignor(S) Hereby Confirms the Assignment. |
| Dec 6, 2017 Reel 44800, frame 848 | Dell Software Inc. | Quest Software Inc. | Change of Name |
| May 22, 2018 Reel 46211, frame 735 | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Quest Software Inc. (F/K/A Dell Software Inc.); Aventail LLC | Release of First Lien Security Interest in Patents Recorded at R/F 040581/0850 |
| May 22, 2018 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Quest Software Inc. (F/K/A Dell Software Inc.) | Release of First Lien Security Interest in Patents Recorded at R/F 040581/0850 |
| May 22, 2018 reel/frame not recorded | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Aventail LLC | Release of First Lien Security Interest in Patents Recorded at R/F 040581/0850 |
| Jun 7, 2018 Reel 46327, frame 347 | Quest Software Inc. | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | First Lien Patent Security Agreement |
| Jun 7, 2018 Reel 46327, frame 486 | Quest Software Inc. | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Second Lien Patent Security Agreement |
| Feb 2, 2022 Reel 58945, frame 778 | Quest Software Inc.; Analytix Data Services Inc.; Binarytree.com LLC; Erwin, Inc.; One Identity LLC; Onelogin, Inc.; One Identity Software International Designated Activity Company | Goldman Sachs Bank USA | First Lien Intellectual Property Security Agreement |
| Feb 2, 2022 Reel 58952, frame 279 | Quest Software Inc.; Analytix Data Services Inc.; Binarytree.com LLC; Erwin, Inc.; One Identity LLC; Onelogin, Inc.; One Identity Software International Designated Activity Company | Morgan Stanley Senior Funding, Inc. | Second Lien Intellectual Property Security Agreement |
| Feb 2, 2022 Reel 59096, frame 683 | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Quest Software Inc. | Release of Second Lien Security Interest in Patents |
| Feb 2, 2022 Reel 59105, frame 479 | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Quest Software Inc. | Release of First Lien Security Interest in Patents |
| Jun 8, 2025 Reel 71527, frame 649 | Quest Software Inc.; Analytix Data Services Inc.; Erwin, Inc. | Alter Domus (US) LLC | Security Interest |
| Nov 18, 2025 Reel 73613, frame 326 | Goldman Sachs Bank USA, as Collateral Agent | Quest Software Inc.; Analytix Data Services Inc.; Binarytree.com LLC; Erwin, Inc. | Release of Security Interest |
| Nov 18, 2025 reel/frame not recorded | Goldman Sachs Bank USA, as Collateral Agent | Quest Software Inc. | Release of Security Interest |
| Nov 18, 2025 reel/frame not recorded | Goldman Sachs Bank USA, as Collateral Agent | Analytix Data Services Inc. | Release of Security Interest |
| Nov 18, 2025 reel/frame not recorded | Goldman Sachs Bank USA, as Collateral Agent | Binarytree.com LLC | Release of Security Interest |
| Nov 18, 2025 reel/frame not recorded | Goldman Sachs Bank USA, as Collateral Agent | Erwin, Inc. | Release of Security Interest |
| Nov 19, 2025 Reel 73606, frame 1 | Morgan Stanley Senior Funding, Inc. | Quest Software Inc.; Analytix Data Services Inc.; Binarytree.com LLC; Erwin, Inc. | Release of Security Interest |
| Nov 19, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Quest Software Inc. | Release of Security Interest |
| Nov 19, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Analytix Data Services Inc. | Release of Security Interest |
| Nov 19, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Binarytree.com LLC | Release of Security Interest |
| Nov 19, 2025 reel/frame not recorded | Morgan Stanley Senior Funding, Inc. | Erwin, Inc. | Release of Security Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
USPTO account required: This application in Patent Center · USPTO's maintenance fee lookup
Maintenance fee events come from USPTO's own fee records. Its fee lookup asks for the patent number and the application number.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Mar 2028
Term ends Mar 31, 2028. No further fees fall due before then
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2013 in our data, the only group it is compared against.
How we rank
Every date shows its work: the base term, any term adjustment or extension, any disclaimer cap, and the maintenance fee record, each with a confidence tier. How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.