Collateral for a security interest recorded Jul 3, 2025 (Wells Fargo Bank, National Association).
Term ends Feb 7, 2036 · Medium confidence
20-year base term ends Dec 16, 2035
Why Medium: The disclaimer's references carry disclaimers of their own not yet read (US 11,168,554), so the cap could be lower.
Filed Dec 27, 2023 as application 18/397,567 · Granted May 12, 2026
Base term plus 53 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Dec 16, 2015
Dec 16, 2015
Term ends
Feb 7, 2036
Feb 7, 2036
Granted
May 12, 2026
May 12, 2026
base term
patent term adjustment
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
53
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 10,378,326, US 11,168,554, US 11,891,993, to Feb 7, 2036. The term already ends on or before that date, so the cap shortened nothing.
0 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.
6
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 53 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. 0 of 2 maintenance fees are 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 Dec 16, 2015, when application 14/971,450, the earliest non-provisional in its chain, was filed (this one was filed Dec 27, 2023) | Dec 16, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +53 days, USPTO patent term adjustment record | Feb 7, 2036 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,378,326, US 11,168,554, US 11,891,993) | resolves to Feb 7, 2036, no earlier than this term, so no change | Medium confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 0 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Feb 7, 2036 | Medium confidence |
This family
| US 9,534,473 | In force Dec 2035 | Dec 2035 |
| US 10,378,326 | In force Apr 2036 | Apr 2036 |
| US 11,168,554 | In force no later than Jun 2036 | no later than Jun 2036 |
| US 11,891,993 | In force Apr 2036 | Apr 2036 |
| US 12,624,685 | this patent Feb 2036 | Feb 2036 |
| Application 19/659,228 | Pending not computed | not computed |
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 8, 2024 Reel 66412, frame 813 | Morris, Jeffrey G.; Jensen, Neal; Bodishbaugh, Adrian Benjamin | Evolution Well Services, LLC | Assignment of Assignor's Interest |
| Feb 8, 2024 Reel 66412, frame 818 | Evolution Well Services, LLC | Typhon Technology Solutions, LLC | Assignment of Assignor's Interest |
| Feb 8, 2024 Reel 66412, frame 827 | Typhon Technology Solutions, LLC | Typhon Technology Solutions (U.S.), LLC | Assignment of Assignor's Interest |
| Jul 3, 2025 Reel 71820, frame 601 | Typhon Technology Solutions (U.S.), LLC | Wells Fargo Bank, National Association, as Agent | Security Interest |
| Sep 3, 2025 Reel 73151, frame 1 | Typhon Technology Solutions (U.S.), LLC | Wells Fargo Bank, National Association, as Agent | Corrective Assignment to Correct the Cover Sheet to Remove Oath/Declaration Option Previously Recorded on Reel 71820 Frame 601. Assignor(S) Hereby Confirms the Security 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Feb 2036
Term ends Feb 7, 2036. Maintenance fees still fall due before then
Note
The 53 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 10,378,326, US 11,168,554, US 11,891,993, ends no earlier than this term, so it caps nothing.
Citations
We have no citation count for this patent yet. That is not the same as never having been cited.
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.