Collateral for a security interest recorded Aug 28, 2024 (Midcap Funding IV Trust).
Term ends Jun 7, 2036 · High confidence
20-year base term ends Jun 12, 2035
Held by Aspen Aerogels, Inc.
Filed Jun 12, 2015 as application 14/738,193 · Granted Jul 5, 2022
Base term plus 361 days of patent term adjustment (USPTO delay)
Today
2015
2036
Clock starts
Jun 12, 2015
Jun 12, 2015
Term ends
Jun 7, 2036
Jun 7, 2036
Granted
Jul 5, 2022
Jul 5, 2022
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
361
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.
8
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 361 days past its 20-year base term on 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 Jun 12, 2015, when this application, 14/738,193, was filed | Jun 12, 2035 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +361 days, USPTO patent term adjustment record | Jun 7, 2036 | 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 | Jun 7, 2036 | High confidence |
This family
| Application 62/015,757 | Provisional application no patent term | no patent term |
| US 11,380,953 | this patent Jun 2036 | Jun 2036 |
| Application PCT/US2015/035727 | PCT application no patent term | no patent term |
| US 11,588,196 | In force no later than Jun 2035 | no later than Jun 2035 |
| US 11,658,361 | In force no later than Jun 2035 | no later than Jun 2035 |
| US 11,870,084 | In force Jun 2035 | Jun 2035 |
| US 12,100,848 | In force Jun 2035 | Jun 2035 |
| Application 18/761,114 | 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 |
|---|---|---|---|
| Aug 24, 2015 Reel 36402, frame 513 | Evans, Owen; Zafiropoulos, Nicholas Anthony; White, Shannon Olga; Dong, Wenting; Rhine, Wendell E | Aspen Aerogels, Inc. | Assignment of Assignor's Interest |
| Aug 28, 2024 Reel 68792, frame 245 | Aspen Aerogels, Inc.; Aspen Aerogels Rhode Island, LLC | 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Jun 2036
Term ends Jun 7, 2036. Maintenance fees still fall due before then
Note
The 361 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
11
later US patents cite this one
That is top 10% of utility patents granted in 2022 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.