Also listed on Surmodics, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jan 21, 2026 (Bank of Montreal).
Term ends May 11, 2032 · High confidence
20-year base term ends May 11, 2032
Held by Surmodics MD, LLC
Filed May 11, 2012 as application 13/469,844 · Granted Sep 12, 2017
Base term plus 175 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2012
2032
Clock starts
May 11, 2012
May 11, 2012
Term ends
May 11, 2032
May 11, 2032
Granted
Sep 12, 2017
Sep 12, 2017
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
175
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 10,213,528, US 10,213,529, US 9,555,119, US 9,861,727.
2 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.
10
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 175 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are 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 May 11, 2012, when this application, 13/469,844, was filed | May 11, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +175 days, USPTO patent term adjustment record | Nov 2, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,213,528, US 10,213,529, US 9,555,119, US 9,861,727) | capped to May 11, 2032 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | May 11, 2032 | High confidence |
This family
| US 9,757,497 | this patent May 2032 | May 2032 |
| Application PCT/US2012/038158 | PCT application no patent term | no patent term |
| US 10,213,529 | In force May 2032 | May 2032 |
| US 9,861,727 | In force May 2032 | May 2032 |
| Application PCT/US2016/015644 | PCT application no patent term | no patent term |
| US 10,213,528 | In force May 2032 | May 2032 |
| US 10,617,793 | In force May 2032 | May 2032 |
| US 11,529,440 | In force May 2032 | May 2032 |
8 of 10 applications in this family shown, earliest filings first. 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 14, 2012 Reel 28374, frame 858 | Slager, Joram | Surmodics, Inc. | 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 |
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
May 2032
Term ends May 11, 2032. Maintenance fees still fall due before then
Note
The 175 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 10,213,528, US 10,213,529, US 9,555,119, US 9,861,727.
Citations
67
later US patents cite this one
That is top 5% of utility patents granted in 2017 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.