Collateral for a security interest recorded May 13, 2025 (Calw S.A. LLC, as Purchaser Agent).
Term ends Nov 29, 2026 · High confidence
20-year base term ends Nov 29, 2026
Held by Clearpoint Neuro, Inc.
Filed Nov 6, 2019 as application 16/675,690 · Granted Jan 16, 2024
Base term plus 698 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2006
2026
Clock starts
Nov 29, 2006
Nov 29, 2006
Term ends
Nov 29, 2026
Nov 29, 2026
Granted
Jan 16, 2024
Jan 16, 2024
base term
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
698
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 10,492,881, US 9,042,958, US 9,763,745.
None due
Maintenance fees
This term ends before the first maintenance fee's grace period does, 4 years from grant, so no fee can end it early.
70
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 698 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. No maintenance fee can end this term early. 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 Nov 29, 2006, when application PCT/US2006/045752, the earliest non-provisional in its chain, was filed (this one was filed Nov 6, 2019) | Nov 29, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +698 days, USPTO patent term adjustment record | Oct 27, 2028 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 10,492,881, US 9,042,958, US 9,763,745) | capped to Nov 29, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No maintenance fee can end the term early | In force | High confidence |
| Computed term end | The steps above, in order | Nov 29, 2026 | High confidence |
This family
| US 8,175,677 | In force Feb 2031 | Feb 2031 |
| US 9,042,958 | In force Aug 2030 | Aug 2030 |
| US 8,315,689 | In force Jun 2031 | Jun 2031 |
| US 8,157,828 | Lapsed on the fee record Apr 2024 | Apr 2024 |
| US 8,099,150 | Lapsed on the fee record Jan 2016 | Jan 2016 |
| US 8,374,677 | In force Jul 2031 | Jul 2031 |
| US 8,195,272 | In force Dec 2030 | Dec 2030 |
| US 9,097,756 | In force Dec 2030 | Dec 2030 |
8 of 70 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 6, 2019 Reel 50934, frame 100 | Karmarkar, Parag V.; Jenkins, Kimble | Surgi-Vision, Inc. | Assignment of Assignor's Interest |
| Nov 6, 2019 Reel 50944, frame 333 | Surgivision, Inc., Formerly Known as Surgi-Vision, Inc. | Mri Interventions, Inc. | Change of Name |
| Jul 29, 2022 Reel 61037, frame 42 | Mri Interventions, Inc. | Clearpoint Neuro, Inc. | Change of Name |
| May 13, 2025 Reel 71276, frame 191 | Clearpoint Neuro, Inc. | Calw S.A. LLC, as Purchaser Agent | 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
Nov 2026
Term ends Nov 29, 2026. No further fees fall due before then
Note
The 698 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 10,492,881, US 9,042,958, US 9,763,745.
Citations
4
later US patents cite this one
Fewer than half of the utility patents granted in 2024 in our data have been cited yet, so we show the count and do not rank on it.
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.