Lapsed Aug 26, 2022 on the fee record · High confidence
20-year base term ends Jul 18, 2027
Second maintenance fee unpaid; grace period ended.
Held by Aker Solutions Limited
Filed Jan 16, 2009 as application 12/374,120 · Granted Aug 26, 2014
Base term, 20 years from filing, plus 602 days of patent term adjustment (USPTO delay)
Today
Lapsed Aug 26, 2022
2007
2029
Clock starts
Jul 18, 2007
Jul 18, 2007
No longer in force
Aug 26, 2022
Aug 26, 2022
Granted
Aug 26, 2014
Aug 26, 2014
Term would have run to
Mar 11, 2029
Mar 11, 2029
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
602
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 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.
27
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Mar 11, 2029: its 20-year base term plus 602 days of term adjustment for prosecution delay. 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 18, 2007, when application PCT/GB2007/002724, the earliest non-provisional in its chain, was filed (this one was filed Jan 16, 2009) | Jul 18, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +602 days, USPTO patent term adjustment record | Mar 11, 2029 | 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 | 1 of 3 maintenance fees paid | lapsed Aug 26, 2022 | High confidence |
| Computed term end | The steps above, in order | Aug 26, 2022 | High confidence |
This family
| US 8,813,786 | this patent Aug 2022 | Aug 2022 |
| US 8,813,852 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 8,746,347 | Lapsed on the fee record Jun 2026 | Jun 2026 |
| US 8,678,093 | In force Jun 2032 | Jun 2032 |
| US 8,973,451 | In force Aug 2032 | Aug 2032 |
| US 9,141,130 | In force Dec 2031 | Dec 2031 |
| US 9,121,238 | In force Feb 2032 | Feb 2032 |
| US 9,244,482 | In force Mar 2032 | Mar 2032 |
8 of 27 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 |
|---|---|---|---|
| Aug 4, 2009 Reel 23082, frame 266 | Tibbetts, Matthew Henry; Gledhill, Andrew Denis; Innes, David Stephen | Aker Subsea Limited | Assignment of Assignor's Interest |
| Aug 19, 2009 Reel 23132, frame 809 | Tibbetts, Martthew Henry; Gledhill, Andrew Denis; Innes, David Stephen | Aker Subsea Limited | Assignment of Assignor's Interest |
| Aug 19, 2009 Reel 23190, frame 89 | Tibbitts, Matthew Henry; Gledhill, Andrew Denis; Innes, David Stephen | Aker Subsea Limited | Corrective Cover Sheet to Correct the First-Named Inventor's Surname from Tibbetts to Tibbitts on Assignment Previously Recorded on Reel 023082 Frame 0266. |
| Mar 3, 2017 Reel 41447, frame 916 | Aker Subsea Limited | Aker Solutions 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Note
The 602 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
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.