Collateral for a security interest recorded Jan 3, 2025 (Midcap Funding IV Trust).
Term ends Apr 25, 2035 · High confidence
20-year base term ends Apr 25, 2035
Held by Arq Solutions, LLC
Filed Oct 10, 2017 as application 15/729,272 · Granted Sep 24, 2019
Base term, 20 years from filing
Today
2015
2035
Clock starts
Apr 25, 2015
Apr 25, 2015
Term ends
Apr 25, 2035
Apr 25, 2035
Granted
Sep 24, 2019
Sep 24, 2019
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
42
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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 3 maintenance fees is paid so far. 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 Apr 25, 2015, when application 14/696,409, the earliest non-provisional in its chain, was filed (this one was filed Oct 10, 2017) | Apr 25, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | In force | High confidence |
| Computed term end | The steps above, in order | Apr 25, 2035 | High confidence |
This family
| US 9,539,538 | In force Jan 2035 | Jan 2035 |
| US 9,314,767 | Lapsed on the fee record Apr 2024 | Apr 2024 |
| US 10,722,865 | In force Aug 2032 | Aug 2032 |
| US 10,307,706 | In force Sep 2036 | Sep 2036 |
| US 10,449,492 | In force Jul 2035 | Jul 2035 |
| US 11,285,459 | In force Aug 2035 | Aug 2035 |
| US 10,766,016 | Lapsed on the fee record Sep 2024 | Sep 2024 |
| Application 15/093,414 | Abandoned not computed | not computed |
8 of 42 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 10, 2017 Reel 43827, frame 628 | Li, Mowen; Huston, Robert B.; Wong, Joseph M. | Ada Carbon Solutions, LLC | Assignment of Assignor's Interest |
| Dec 7, 2018 Reel 47741, frame 411 | Ada Carbon Solutions, LLC | The Bank of New York Mellon, as Administrative Agent | Notice of Grant of Security Interest in Patents |
| Jun 4, 2021 Reel 56483, frame 651 | The Bank of New York Mellon, as Administrative Agent | Ada Carbon Solutions, LLC | Termination and Release of Security Interest in Patents |
| Feb 1, 2023 Reel 62622, frame 51 | Ada Carbon Solutions, LLC; Ada-Es, Inc. | CF Global Credit, LP | Patent Security Agreement |
| Feb 22, 2024 Reel 66694, frame 271 | Ada Carbon Solutions, LLC | Arq Solutions, LLC | Change of Name |
| Dec 27, 2024 Reel 69791, frame 980 | CF Global Credit, LP, as Administrative Agent | Arq Solutions, LLC (F/K/A Ada Carbon Solutions, LLC); Arq Solutions (Es), Inc. (F/K/A Ada-Es, Inc.) | Release of Security Interest |
| Dec 27, 2024 reel/frame not recorded | CF Global Credit, LP, as Administrative Agent | Arq Solutions, LLC (F/K/A Ada Carbon Solutions, LLC) | Release of Security Interest |
| Dec 27, 2024 reel/frame not recorded | CF Global Credit, LP, as Administrative Agent | Arq Solutions (Es), Inc. (F/K/A Ada-Es, Inc.) | Release of Security Interest |
| Jan 3, 2025 Reel 69817, frame 645 | Arq Solutions, LLC; Arq Solutions (Es), Inc. | Midcap Funding IV Trust | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Apr 2035
Term ends Apr 25, 2035. Maintenance fees still fall due before then
Citations
17
later US patents cite this one
That is top 25% of utility patents granted in 2019 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.