Term ends Jul 12, 2027 · High confidence
20-year base term ended Apr 12, 2024
Held by Evonik Operations GmbH
Filed Aug 15, 2006 as application 10/553,003 · Granted Dec 23, 2014
Base term plus 1186 days of patent term adjustment (USPTO delay)
Today
2004
2027
Clock starts
Apr 12, 2004
Apr 12, 2004
Term ends
Jul 12, 2027
Jul 12, 2027
Granted
Dec 23, 2014
Dec 23, 2014
base term
patent term adjustment
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
1,186
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.
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 1186 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 Apr 12, 2004, when application PCT/US2004/011485, the earliest non-provisional in its chain, was filed (this one was filed Aug 15, 2006) | Apr 12, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1186 days, USPTO patent term adjustment record | Jul 12, 2027 | 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 | Jul 12, 2027 | High confidence |
This family
| US 8,916,196 | this patent Jul 2027 | Jul 2027 |
| Application 11/799,700 | Abandoned not computed | not computed |
| US 10,272,044 | Term ended no later than Mar 2026 | no later than Mar 2026 |
3 of 4 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 |
|---|---|---|---|
| Oct 11, 2005 Reel 17890, frame 674 | Zeigerson, Ehud | PR Pharmaceuticals | Assignment of Assignor's Interest |
| Jul 14, 2006 Reel 17933, frame 429 | Zeigerson, Ehud | PR Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Jan 14, 2008 Reel 20353, frame 884 | PR Pharmaceuticals, Inc. | Silicon Valley Bank | Security Agreement |
| Nov 7, 2008 Reel 21794, frame 979 | Silicon Valley Bank | PR Pharmaceuticals Inc. | Release |
| Nov 21, 2008 Reel 21861, frame 519 | Brookwood Pharmaceuticals, Inc. | PR Pharmaceuticals, Inc. | Assignment of Assignor's Interest |
| Nov 24, 2008 Reel 21876, frame 528 | PR Pharmaceuticals, Inc. | Brookwood Pharmaceuticals, Inc. | Corrective Assignment to Correct the Assignor And |
| Jun 25, 2009 Reel 23018, frame 114 | PR Pharmaceuticals, Inc. | Brookwood Pharmaceuticals, Inc. | Corrective Assignment to Correct the Serial Number |
| Feb 28, 2013 Reel 29897, frame 478 | Surmodics Pharmaceuticals, Inc. | Evonik Corporation | Assignment of Assignor's Interest |
| May 31, 2013 Reel 30518, frame 809 | Brookwood Pharmaceuticals, Inc. | Surmodics Pharmaceuticals, Inc. | Change of Name |
| May 2, 2025 Reel 71152, frame 488 | Evonik Corporation | Evonik Operations GmbH | Assignment of Assignor's 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
Jul 2027
Term ends Jul 12, 2027. No further fees fall due before then
Note
The 1186 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
4
later US patents cite this one
That is below the median of utility patents granted in 2014 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.