Term ended Jun 20, 2025 · High confidence
20-year base term ended Jul 3, 2023
Held by Katholieke Universiteit Leuven
Filed May 19, 2009 as application 12/468,667 · Granted Jul 15, 2014
Base term plus 718 days of patent term adjustment (USPTO delay)
Today
Term ended Jun 20, 2025
2003
2026
Clock starts
Jul 3, 2003
Jul 3, 2003
Term ended
Jun 20, 2025
Jun 20, 2025
Granted
Jul 15, 2014
Jul 15, 2014
base term
patent term adjustment
after the term ends
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
718
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 7,648,998, to Jun 20, 2025. The term already ends on or before that date, so the cap shortened nothing.
2 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.
3
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 718 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jul 3, 2003, when application PCT/BE2003/000117, the earliest non-provisional in its chain, was filed (this one was filed May 19, 2009) | Jul 3, 2023 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +718 days, USPTO patent term adjustment record | Jun 20, 2025 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,648,998) | resolves to Jun 20, 2025, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jun 20, 2025 | High confidence |
This family
| US 7,737,162 | In force Aug 2027 | Aug 2027 |
| US 8,779,141 | this patent Jun 2025 | Jun 2025 |
2 of 3 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 9, 2009 reel/frame not recorded | Puerstinger, Gerhard | Gilead Sciences, Inc. | Assignment of Assignor's Interest |
| Oct 9, 2009 reel/frame not recorded | Puerstinger, Gerhard | K.U. Leuven Research & Development | Assignment of Assignor's Interest |
| Oct 9, 2009 reel/frame not recorded | Puerstinger, Gerhard | Puerstinger, Gerhard | Assignment of Assignor's Interest |
| Oct 9, 2009 reel/frame not recorded | K.U. Leuven Research & Development | Gilead Sciences, Inc. | Assignment of Assignor's Interest |
| Oct 9, 2009 reel/frame not recorded | K.U. Leuven Research & Development | K.U. Leuven Research & Development | Assignment of Assignor's Interest |
| Oct 9, 2009 reel/frame not recorded | K.U. Leuven Research & Development | Puerstinger, Gerhard | Assignment of Assignor's Interest |
| Oct 9, 2009 Reel 23354, frame 1 | Puerstinger, Gerhard | Gilead Sciences, Inc.; K.U. Leuven Research & Development; Puerstinger, Gerhard | Assignment of Assignor's Interest |
| Oct 9, 2009 Reel 23354, frame 33 | K.U. Leuven Research & Development | Gilead Sciences, Inc.; K.U. Leuven Research & Development; Puerstinger, Gerhard | Assignment of Assignor's Interest |
| Sep 4, 2015 Reel 36495, frame 4 | Gilead Sciences, Inc. | K.U. Leuven Research & Development | Assignment of Assignor's Interest |
| Jan 3, 2018 Reel 44523, frame 603 | Neyts, Johan; De Clercq, Erik | Katholieke Universiteit Leuven | Assignment of Assignor's Interest |
| Jan 3, 2018 reel/frame not recorded | Puerstinger, Gerhard | Gilead Sciences, Inc. | Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 023354 Frame 0001. Assignor(S) Hereby Confirms the Assignee Name --Katholieke Universiteit Leuven-- and Address --Ku Leuven R&d, Waaistraat 6-BUS 5105, 3000 Leuven, Belgium--. |
| Jan 3, 2018 reel/frame not recorded | Puerstinger, Gerhard | Katholieke Universiteit Leuven | Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 023354 Frame 0001. Assignor(S) Hereby Confirms the Assignee Name --Katholieke Universiteit Leuven-- and Address --Ku Leuven R&d, Waaistraat 6-BUS 5105, 3000 Leuven, Belgium--. |
| Jan 3, 2018 reel/frame not recorded | Puerstinger, Gerhard | Puerstinger, Gerhard | Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 023354 Frame 0001. Assignor(S) Hereby Confirms the Assignee Name --Katholieke Universiteit Leuven-- and Address --Ku Leuven R&d, Waaistraat 6-BUS 5105, 3000 Leuven, Belgium--. |
| Jan 3, 2018 Reel 44994, frame 40 | Puerstinger, Gerhard | Gilead Sciences, Inc.; Katholieke Universiteit Leuven; Puerstinger, Gerhard | Corrective Assignment to Correct the Assignee Name and Address Previously Recorded on Reel 023354 Frame 0001. Assignor(S) Hereby Confirms the Assignee Name --Katholieke Universiteit Leuven-- and Address --Ku Leuven R&d, Waaistraat 6-BUS 5105, 3000 Leuven, Belgium--. |
| Jan 4, 2018 reel/frame not recorded | Katholieke Universiteit Leuven | Gilead Sciences, Inc. | Corrective Assignment to Correct the Assignment Previously Recorded at Reel: 023354 Frame: 0033. Assignor(S) Hereby Confirms the Corrective Assignment to Correct the Assignor and Assignee Name and Address.. |
| Jan 4, 2018 reel/frame not recorded | Katholieke Universiteit Leuven | Katholieke Universiteit Leuven | Corrective Assignment to Correct the Assignment Previously Recorded at Reel: 023354 Frame: 0033. Assignor(S) Hereby Confirms the Corrective Assignment to Correct the Assignor and Assignee Name and Address.. |
| Jan 4, 2018 reel/frame not recorded | Katholieke Universiteit Leuven | Puerstinger, Gerhard | Corrective Assignment to Correct the Assignment Previously Recorded at Reel: 023354 Frame: 0033. Assignor(S) Hereby Confirms the Corrective Assignment to Correct the Assignor and Assignee Name and Address.. |
| Jan 4, 2018 Reel 45002, frame 531 | Gilead Sciences, Inc. | Katholieke Universiteit Leuven | Corrective Assignment to Correct the Assignment Previously Recorded at Reel: 036495 Frame: 0004. Assignor(S) Hereby Confirms the Corrective Assignment to Correct the Assignee Name and Address.. |
| Jan 4, 2018 Reel 45000, frame 429 | Katholieke Universiteit Leuven | Gilead Sciences, Inc.; Katholieke Universiteit Leuven; Puerstinger, Gerhard | Corrective Assignment to Correct the Assignment Previously Recorded at Reel: 023354 Frame: 0033. Assignor(S) Hereby Confirms the Corrective Assignment to Correct the Assignor and Assignee Name and Address.. |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 718 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 7,648,998, ends no earlier than this term, so it caps nothing.
Citations
1
later US patent cites 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.