Also listed on The University of Hong Kong, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends no later than Nov 28, 2026 · Medium confidence
20-year base term ended Apr 25, 2026
In force on USPTO's status record and by its fee record. A terminal disclaimer on file may shorten this term, possibly to a date already past; its reference document is unresolved, so the date above is an upper bound and no earlier date is guessed.
Apr 25, 2006
Nov 28, 2026
Dec 12, 2023
This patent's term runs 217 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. No maintenance fee can end this term early. Confidence: Medium. from the record
How we calculated this date
| Step | Input | Date after this step | Confidence |
|---|---|---|---|
| Base term, 20 years from filing | Clock starts Apr 25, 2006, when application 11/411,745, the earliest non-provisional in its chain, was filed (this one was filed Apr 5, 2016) | Apr 25, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +217 days, USPTO patent term adjustment record | Nov 28, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | no later than Nov 28, 2026 | Medium confidence |
This family
| US 9,327,010 | Term ended Apr 2026 | Apr 2026 |
| US 9,162,005 | In force Feb 2030 | Feb 2030 |
| US 9,364,513 | Term ended Apr 2026 | Apr 2026 |
| US 9,789,157 | Term ended Apr 2026 | Apr 2026 |
| US 11,839,694 | this patent no later than Nov 2026 | no later than Nov 2026 |
| US 10,682,386 | Lapsed on the fee record Jun 2024 | Jun 2024 |
Assignments
| Recorded | Assignor | Assignee | Conveyance |
|---|---|---|---|
| Jul 5, 2016 Reel 39252, frame 856 | Massachusetts Institute of Technology | National Institutes of Health (Nih), U.S. Dept. of Health and Human Services (DHHS), U.S. Government | Confirmatory License |
| Apr 20, 2017 Reel 42078, frame 56 | Liang, Yu-xiang; So, Kwok-fai; Tay, David | The University of Hong Kong | Assignment of Assignor's Interest |
| Apr 20, 2017 Reel 42078, frame 87 | The University of Hong Kong | Versitech Limited | Assignment of Assignor's Interest |
| Apr 20, 2017 Reel 42287, frame 462 | Ellis-behnke, Rutledge; Schneider, Gerald E.; Zhang, Shuguang | Massachusetts Institute of Technology | 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.
What's changing
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Nov 28, 2026. We will not guess the cap.