Term ends Apr 15, 2033 · Medium confidence
20-year base term ends Mar 15, 2033
Why Medium: A parent in the chain could not be resolved.
Filed Feb 28, 2019 as application 16/288,483 · Granted May 25, 2021
Base term plus 31 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
Mar 15, 2013
Mar 15, 2013
Term ends
Apr 15, 2033
Apr 15, 2033
Granted
May 25, 2021
May 25, 2021
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
31
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 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.
10
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 31 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. 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 Mar 15, 2013, when application 13/832,884, the earliest non-provisional in its chain, was filed (this one was filed Feb 28, 2019); a parent in its chain could not be resolved (the next row) | Mar 15, 2033 | 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 | +31 days, USPTO patent term adjustment record | Apr 15, 2033 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 15, 2033 | Medium confidence |
This family
| US 8,998,166 | In force Jan 2033 | Jan 2033 |
| US 9,212,758 | In force Dec 2033 | Dec 2033 |
| US 8,991,420 | Lapsed on the fee record Mar 2023 | Mar 2023 |
| US 9,568,117 | In force Nov 2032 | Nov 2032 |
| US 10,132,422 | In force Mar 2033 | Mar 2033 |
| US 10,774,945 | In force Mar 2033 | Mar 2033 |
| US 11,015,733 | this patent Apr 2033 | Apr 2033 |
| US 11,326,712 | Lapsed on the fee record May 2026 | May 2026 |
8 of 10 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 |
|---|---|---|---|
| Feb 28, 2019 Reel 48466, frame 85 | Choate, Jeremy Ryan; McEvoy, Travis Kyle; Cheatham, Lloyd; Adams, Keith M.; Law, Robert | GE Oil & Gas Pressure Control LP | Assignment of Assignor's Interest |
| Jan 26, 2023 Reel 62520, frame 634 | GE Oil & Gas Pressure Control LP | Baker Hughes Pressure Control LP | Change of Name |
| Oct 29, 2025 Reel 73424, frame 966 | Baker Hughes Pressure Control LP | Baker Hughes Pressure Control LLC | Change of Name |
| Feb 4, 2026 Reel 74615, frame 473 | Baker Hughes Pressure Control LLC | Baker Hughes Oilfield Operations LLC | Confirmatory Assignment |
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
Apr 2033
Term ends Apr 15, 2033. Maintenance fees still fall due before then
Note
The 31 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 2021 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.