Collateral for a security interest recorded Feb 7, 2024 (Blue Owl Capital Corporation).
Term ends Dec 30, 2030 · High confidence
20-year base term ends Jun 23, 2029
Held by Covaris, LLC
Filed Jul 20, 2011 as application 13/186,858 · Granted Apr 7, 2015
Base term plus 555 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Jun 23, 2009
Jun 23, 2009
Term ends
Dec 30, 2030
Dec 30, 2030
Granted
Apr 7, 2015
Apr 7, 2015
base term
patent term adjustment
fee events
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
555
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
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 runs 555 days past its 20-year base term on 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 Jun 23, 2009, when application 12/489,693, the earliest non-provisional in its chain, was filed (this one was filed Jul 20, 2011) | Jun 23, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +555 days, USPTO patent term adjustment record | Dec 30, 2030 | 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 | Dec 30, 2030 | High confidence |
This family
| US 9,267,867 | In force no later than Mar 2033 | no later than Mar 2033 |
| US 8,999,704 | this patent Dec 2030 | Dec 2030 |
| US 9,790,485 | In force Oct 2029 | Oct 2029 |
The applications whose file history this site holds. The family may have others.
Assignments
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 2, 2011 Reel 26850, frame 648 | Laugharn, James A., JR. | Covaris, Inc. | Assignment of Assignor's Interest |
| Jan 19, 2022 Reel 58768, frame 261 | Covaris, Inc. | Covaris, LLC | Change of Name |
| Jan 27, 2022 Reel 58887, frame 48 | Covaris, LLC | Ares Capital Corporation, As Administrative Agent | Security Interest |
| Dec 4, 2023 Reel 65759, frame 122 | Ares Capital Corporation, As Administrative Agent | Covaris, LLC | Release of Security Interest in Patents Previously Recorded at Reel/Frame (058887/0048) |
| Feb 7, 2024 Reel 66511, frame 843 | Covaris, LLC | Blue Owl Capital Corporation | 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
Dec 2030
Term ends Dec 30, 2030. No further fees fall due before then
Note
The 555 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is above the median of utility patents granted in 2015 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.