Collateral for a security interest recorded Nov 1, 2023 (Triplepoint Venture Growth BDC Corp.).
Term ends May 30, 2039 · High confidence
20-year base term ends May 30, 2039
Held by Hydrow, Inc.
Filed May 30, 2019 as application 16/426,347 · Granted Nov 10, 2020
Base term, 20 years from filing
Today
2019
2039
Clock starts
May 30, 2019
May 30, 2019
Term ends
May 30, 2039
May 30, 2039
Granted
Nov 10, 2020
Nov 10, 2020
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.
5
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 May 30, 2019, when this application, 16/426,347, was filed | May 30, 2039 | 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 | May 30, 2039 | High confidence |
This family
| US 10,828,531 | this patent May 2039 | May 2039 |
| Application PCT/US2020/032132 | PCT application no patent term | no patent term |
| US 11,904,200 | In force Dec 2039 | Dec 2039 |
| US 12,186,622 | In force May 2039 | May 2039 |
| US 12,779,278 | In force Sep 2039 | Sep 2039 |
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 |
|---|---|---|---|
| Jun 3, 2019 Reel 49344, frame 632 | Renner, Klaus Heribert; Burke, William Churchill; Mur-miranda, Jose Oscar; Evans, Christopher Olin | Cooper Perkins, Inc. | Assignment of Assignor's Interest |
| Jun 3, 2019 Reel 49344, frame 785 | Smith, Bruce | Hydrow, Inc. | Assignment of Assignor's Interest |
| Jun 3, 2019 Reel 49345, frame 486 | Cooper Perkins, Inc. | Hydrow, Inc. | Assignment of Assignor's Interest |
| Jun 5, 2020 Reel 52852, frame 300 | Renner, Klaus Heribert; Burke, William Churchill Taliaferro; Mur-miranda, Jose Oscar; Evans, Christopher Olin | Cooper Perkins, Inc. | Corrective Assignment to Correct the Inventor's Name William Churchill Burke Previously Recorded on Reel 049344 Frame 0632. Assignor(S) Hereby Confirms the Assignment. |
| May 16, 2023 Reel 63652, frame 703 | Hydrow, Inc. | First-Citizens Bank & Trust Company | Security Interest |
| Nov 1, 2023 Reel 65429, frame 758 | Hydrow, Inc. | Triplepoint Venture Growth BDC Corp. | Security Interest |
| Nov 16, 2023 Reel 65608, frame 61 | First-Citizens Bank & Trust Company | Hydrow, Inc. | Termination and Release of Intellectual Property Security Agreement at Reel/Frame No. 63652/0703 |
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
May 2039
Term ends May 30, 2039. Maintenance fees still fall due before then
Citations
35
later US patents cite this one
That is top 5% of utility patents granted in 2020 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.