Term ends Jan 25, 2031 · Low confidence
20-year base term ends Dec 22, 2031
Grace period ended Nov 6, 2026 · no payment on record as of the Nov 10, 2026 fee file · lapse expected
Held by Dr. Phillip King Wilson
Filed Sep 6, 2017 as application 15/696,202 · Granted Nov 6, 2018
Base term, 20 years from filing · capped by a resolved terminal disclaimer
Today
2011
2031
Clock starts
Dec 22, 2011
Dec 22, 2011
Term ends
Jan 25, 2031
Jan 25, 2031
Granted
Nov 6, 2018
Nov 6, 2018
base term
after the term ends
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.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 9,363,279, US 9,762,605.
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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 1 of 3 maintenance fees is paid so far. Confidence: Low: the grace period for its second maintenance fee ended Nov 6, 2026 with no payment on record. 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 Dec 22, 2011, when the earliest non-provisional application in its chain was filed (this one was filed Sep 6, 2017); a parent in its chain could not be resolved (the next row) | Dec 22, 2031 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 9,363,279, US 9,762,605) | capped to Jan 25, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | No fee event states this; the fee state is read from the payments the fee record holds; the fee record shows no payment for this window, and USPTO's status still reads "Patented Case"; the grace period ended with no payment on record in the fee file | grace period ended Nov 6, 2026 | Low confidence |
| Computed term end | The steps above, in order | Jan 25, 2031 | Low confidence |
This family
| US 9,363,279 | Lapsed on the fee record Jun 2024 | Jun 2024 |
| US 9,762,605 | Lapsed on the fee record Sep 2025 | Sep 2025 |
| US 10,122,751 | this patent Jan 2031 | Jan 2031 |
| US 10,749,891 | Lapsed on the fee record Aug 2024 | Aug 2024 |
| US 11,425,159 | Lapsed on the fee record Aug 2026 | Aug 2026 |
| US 12,058,166 | In force May 2030 | May 2030 |
| Application 18/739,438 | Pending not computed | not computed |
7 of 8 applications in this family shown, earliest filings first. The applications whose file history this site holds. The family may have others.
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.
What's changing
Nov 6
Grace period ended Nov 6, 2026 with no payment on record. The term ends early once USPTO posts the lapse
Jan 2031
Term ends Jan 25, 2031.
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 9,363,279, US 9,762,605.
Citations
14
later US patents cite this one
That is top 25% of utility patents granted in 2018 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.