Also listed on Solvias AG, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Apr 28, 2027 · Medium confidence
20-year base term ended Dec 23, 2023
Why Medium: A parent in the chain could not be resolved.
Held by Amr Bio Limited
Filed Nov 21, 2006 as application 11/562,183 · Granted Dec 27, 2011
Base term plus 1222 days of patent term adjustment (USPTO delay)
Today
2003
2027
Clock starts
Dec 23, 2003
Dec 23, 2003
Term ends
Apr 28, 2027
Apr 28, 2027
Granted
Dec 27, 2011
Dec 27, 2011
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
1,222
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.
2
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 1222 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 23, 2003, when application 10/744,863, the earliest non-provisional in its chain, was filed (this one was filed Nov 21, 2006); a parent in its chain could not be resolved (the next row) | Dec 23, 2023 | 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 | +1222 days, USPTO patent term adjustment record | Apr 28, 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 | Apr 28, 2027 | Medium confidence |
This family
| US 7,244,841 | Term ended Dec 2023 | Dec 2023 |
| US 8,084,602 | this patent Apr 2027 | Apr 2027 |
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 |
|---|---|---|---|
| Feb 7, 2007 Reel 18864, frame 501 | Love, William; Brundish, Derek; Rhys-williams, William; Feng, Xiang Dong; Pugin, Benoit | Destiny Pharma Limited; Solvias AG | Assignment of Assignor's Interest |
| Feb 7, 2007 reel/frame not recorded | Love, William; Rhys-williams, William; Brundish, Derek; Feng, Xiang Dong; Pugin, Benoit | Destiny Pharma Limited | Assignment of Assignor's Interest |
| Feb 7, 2007 reel/frame not recorded | Love, William; Rhys-williams, William; Brundish, Derek; Feng, Xiang Dong; Pugin, Benoit | Solvias AG | Assignment of Assignor's Interest |
| Sep 14, 2026 Reel 75997, frame 311 | Destiny Pharma Ltd. | Moirai Acquisitions Limited | Assignment of Assignor's Interest |
| Sep 14, 2026 Reel 75997, frame 398 | Moirai Acquisitions Limited | Destiny Pharma Amr Limited | Change of Name |
| Sep 14, 2026 Reel 75997, frame 450 | Destiny Pharma Amr Limited | Amr Bio Limited | Change of Name |
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
Apr 2027
Term ends Apr 28, 2027. No further fees fall due before then
Note
The 1222 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
3
later US patents cite this one
That is below the median of utility patents granted in 2011 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.