Also listed on Embolitech, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded May 21, 2026 (First-Citizens Bank & Trust Company).
Term ends Jun 18, 2029 · High confidence
20-year base term ends Oct 27, 2028
Held by Endologix, LLC
Filed Apr 8, 2016 as application 15/093,916 · Granted Oct 20, 2020
Base term plus 234 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Oct 27, 2008
Oct 27, 2008
Term ends
Jun 18, 2029
Jun 18, 2029
Granted
Oct 20, 2020
Oct 20, 2020
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
234
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 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
8
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 234 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. 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 Oct 27, 2008, when application PCT/US2008/081310, the earliest non-provisional in its chain, was filed (this one was filed Apr 8, 2016) | Oct 27, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +234 days, USPTO patent term adjustment record | Jun 18, 2029 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jun 18, 2029 | High confidence |
This family
| Application PCT/US2008/081310 | PCT application no patent term | no patent term |
| US 9,827,084 | In force May 2031 | May 2031 |
| US 10,806,559 | this patent Jun 2029 | Jun 2029 |
| US 9,943,397 | In force Oct 2028 | Oct 2028 |
| US 12,268,587 | In force Jan 2031 | Jan 2031 |
| Application 17/000,074 | Pending not computed | not computed |
| Application PCT/US2021/013410 | PCT application no patent term | no patent term |
| Application 18/410,989 | Pending not computed | not computed |
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 |
|---|---|---|---|
| Jun 5, 2018 Reel 45992, frame 253 | Embolitech, LLC | Surmodics MD, LLC | Assignment of Assignor's Interest |
| Aug 23, 2024 Reel 68762, frame 423 | Surmodics, Inc.; Surmodics Shared Services, LLC; Surmodics Holdings, LLC; Surmodics Coatings, LLC; Surmodics MD, LLC; Surmodics Coatings MFG, LLC; Surmodics Ivd, Inc.; Surmodics MD Operations, LLC; Normedix, Inc. | Midcap Funding IV Trust | Security Interest |
| Nov 24, 2025 Reel 73690, frame 186 | Midcap Funding IV Trust | Surmodics, Inc.; Surmodics Shared Services, LLC; Surmodics Holdings, LLC; Surmodics Coatings, LLC; Surmodics MD, LLC; Surmodics Coatings MFG, LLC; Surmodics Ivd, Inc.; Surmodics MD Operations, LLC; Normedix, Inc. | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics, Inc. | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics Shared Services, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics Holdings, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics Coatings, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics MD, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics Coatings MFG, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics Ivd, Inc. | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Surmodics MD Operations, LLC | Release of Security Interest |
| Nov 24, 2025 reel/frame not recorded | Midcap Funding IV Trust | Normedix, Inc. | Release of Security Interest |
| Dec 8, 2025 Reel 73894, frame 58 | Surmodics, Inc. | Surmodics MD, LLC | Assignment of Assignor's Interest |
| Jan 21, 2026 Reel 74461, frame 199 | Surmodics MD, LLC | Bank Of Montreal, As Collateral Agent | Security Interest |
| May 13, 2026 Reel 74647, frame 1 | Bonnette, Michael J.; Prather, Richard R.; Thor, Eric J.; Weisel, Stephen E.; Ball, Douglas L.; Morris, David B.; Kozak, Debra M. | Medrad, Inc. | Assignment of Assignor's Interest |
| May 13, 2026 Reel 74648, frame 183 | Ansel, Gary | Embolitech, LLC | Assignment of Assignor's Interest |
| May 13, 2026 Reel 74648, frame 867 | Medrad, Inc. | Embolitech, LLC | Assignment of Assignor's Interest |
| May 18, 2026 Reel 74688, frame 467 | Surmodics, Inc.; Surmodics MD, LLC | Endologix, LLC | Assignment of Assignor's Interest |
| May 18, 2026 Reel 75578, frame 955 | Bank Of Montreal, As Collateral Agent | Surmodics MD, LLC | Partial Release of Security Interest in Patents Recorded at R/F 074461/0199 |
| May 21, 2026 Reel 74729, frame 33 | Endologix LLC | First-Citizens Bank & Trust Company | 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.
What's changing
Jun 2029
Term ends Jun 18, 2029. Maintenance fees still fall due before then
Note
The 234 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
22
later US patents cite this one
That is top 10% of utility patents granted in 2020 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.