Collateral for a security interest recorded Nov 1, 2021 (Twin Brook Capital Partners, LLC).
Term ended Jul 18, 2026 · High confidence
20-year base term ended Mar 16, 2026
Held by Ecotech, Inc.
Filed Jun 30, 2008 as application 12/164,193 · Granted Aug 31, 2010
Base term plus 176 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Jul 18, 2026
2006
2026
Clock starts
Mar 16, 2006
Mar 16, 2006
Term ended
Jul 18, 2026
Jul 18, 2026
Granted
Aug 31, 2010
Aug 31, 2010
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
176
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,393,188.
3 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.
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 176 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. All three maintenance fees were paid, so no fee lapse ended it. 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 Mar 16, 2006, when application 11/376,316, the earliest non-provisional in its chain, was filed (this one was filed Jun 30, 2008) | Mar 16, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +176 days, USPTO patent term adjustment record | Sep 8, 2026 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,393,188) | capped to Jul 18, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 3 of 3 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Jul 18, 2026 | High confidence |
This family
| US 7,393,188 | Term ended Jul 2026 | Jul 2026 |
| US 7,785,081 | this patent Jul 2026 | Jul 2026 |
| US 8,197,232 | Term ended no later than Mar 2026 | no later than Mar 2026 |
| US 8,734,134 | Term ended no later than Mar 2026 | no later than Mar 2026 |
| US 9,140,264 | Term ended Mar 2026 | Mar 2026 |
| US 9,534,602 | Term ended Mar 2026 | Mar 2026 |
| US 10,047,750 | Term ended Mar 2026 | Mar 2026 |
| US 10,662,951 | Term ended Mar 2026 | Mar 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 |
|---|---|---|---|
| Nov 16, 2015 Reel 37045, frame 568 | Ecotech, Inc. | M&T Bank | Security Interest |
| Oct 18, 2021 Reel 57824, frame 459 | Clasen, Patrick; Marks, Timothy; Lawyer, Justin | Ecotech Marine, LLC | Assignment of Assignor's Interest |
| Oct 18, 2021 Reel 57824, frame 535 | Ecotech Marine, LLC | Ecotech, Inc. | Assignment of Assignor's Interest |
| Nov 1, 2021 Reel 57976, frame 278 | Et Husk, LLC; Ecotech, LLC | Twin Brook Capital Partners, LLC, as Administrative Agent | Security Interest |
| May 22, 2026 Reel 74746, frame 270 | M&T Bank | Ecotech, Inc. | Release of 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
Note
The 176 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,393,188.
Citations
5
later US patents cite this one
That is below the median of utility patents granted in 2010 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.