Term ends Apr 19, 2033 · High confidence
20-year base term ends Apr 19, 2033
Held by Sanuwave, Inc.
Filed Jul 16, 2019 as application 16/513,204 · Granted Jun 8, 2021
Base term, 20 years from filing
Today
2013
2033
Clock starts
Apr 19, 2013
Apr 19, 2013
Term ends
Apr 19, 2033
Apr 19, 2033
Granted
Jun 8, 2021
Jun 8, 2021
base term
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 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 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 is its 20-year base term, with no adjustment for prosecution delay. 1 of 2 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 19, 2013, when application 13/866,134, the earliest non-provisional in its chain, was filed (this one was filed Jul 16, 2019) | Apr 19, 2033 | 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 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Apr 19, 2033 | High confidence |
This family
| US 9,057,232 | In force Apr 2033 | Apr 2033 |
| Application PCT/US2014/033614 | PCT application no patent term | no patent term |
| Application 14/739,532 | Abandoned not computed | not computed |
| US 10,378,314 | In force Apr 2033 | Apr 2033 |
| US 11,072,997 | In force Apr 2033 | Apr 2033 |
| US 11,028,670 | this patent Apr 2033 | Apr 2033 |
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 7, 2020 Reel 53436, frame 953 | Sanuwave, Inc. | NH Expansion Credit Fund Holdings LP | Security Interest |
| Sep 26, 2025 Reel 72385, frame 128 | Sanuwave, Inc. | Jpmorgan Chase Bank, N.a. | Security Interest |
| Sep 30, 2025 Reel 72417, frame 134 | NH Expansion Credit Fund Holdings LP | Sanuwave, 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
Apr 2033
Term ends Apr 19, 2033. Maintenance fees still fall due before then
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2021 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.