Collateral for a security interest recorded Sep 25, 2025 (Golub Capital Markets LLC).
Term ended Jan 31, 2026 · Medium confidence
20-year base term ended Feb 17, 2025
Why Medium: A parent in the chain could not be resolved.
Held by Cook Biotech Incorporated
Filed Oct 2, 2015 as application 14/873,335 · Granted Dec 24, 2019
Base term plus 348 days of patent term adjustment (USPTO delay)
Today
Term ended Jan 31, 2026
2005
2026
Clock starts
Feb 17, 2005
Feb 17, 2005
Term ended
Jan 31, 2026
Jan 31, 2026
Granted
Dec 24, 2019
Dec 24, 2019
base term
patent term adjustment
after the term ends
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
348
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 1
Maintenance fees paid
One maintenance fee can end this term early, the one due 3.5 years from grant; the next one's grace period runs past the term end. This counts it if the record shows it paid.
4
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 348 days past its 20-year base term on prosecution delay. Confidence: Medium. 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 Feb 17, 2005, when application 11/060,078, the earliest non-provisional in its chain, was filed (this one was filed Oct 2, 2015); a parent in its chain could not be resolved (the next row) | Feb 17, 2025 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +348 days, USPTO patent term adjustment record | Jan 31, 2026 | 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 | 1 of 1 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jan 31, 2026 | Medium confidence |
This family
| US 8,920,443 | In force Dec 2028 | Dec 2028 |
| US 9,186,140 | In force Dec 2026 | Dec 2026 |
| US 10,512,463 | this patent Jan 2026 | Jan 2026 |
| US 11,583,276 | Term ended Nov 2025 | Nov 2025 |
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 |
|---|---|---|---|
| Oct 19, 2015 Reel 36822, frame 219 | Hiles, Michael C.; Patel, Umesh H.; Shah, Bhavin; McAlexander, Chad S. | Cook Biotech Incorporated | Assignment of Assignor's Interest |
| Oct 23, 2015 Reel 36955, frame 337 | Hiles, Michael C.; Patel, Umesh H.; Shh, Bhavin; McAlexander, Chad S. | Cook Biotech Incorporated | Corrective Assignment to Correct the Application Number 14873353 Previously Recorded at Reel: 036822 Frame: 0219. Assignor(S) Hereby Confirms the Assignment. |
| Apr 3, 2024 Reel 67001, frame 541 | Cook Biotech Incorporated | Ares Capital Corporation, As Security Agent | Security Interest |
| Sep 25, 2025 Reel 72924, frame 721 | Rti Surgical, Inc.; Cook Biotech Incorporated; Tissx, LLC | Golub Capital Markets LLC, as Collateral Agent | Security Interest |
| Sep 25, 2025 Reel 72938, frame 231 | Ares Capital Corporation | Cook Biotech Incorporated | Termination and Release of Security Interest in Patents and Trademarks |
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
Note
The 348 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
5
later US patents cite this one
That is above the median of utility patents granted in 2019 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.