Term ends Dec 28, 2031 · High confidence
20-year base term ends Dec 16, 2031
Held by Stryker Corporation
Filed Dec 16, 2011 as application 13/328,773 · Granted Oct 29, 2013
Base term plus 12 days of patent term adjustment (USPTO delay)
Today
2011
2031
Clock starts
Dec 16, 2011
Dec 16, 2011
Term ends
Dec 28, 2031
Dec 28, 2031
Granted
Oct 29, 2013
Oct 29, 2013
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
12
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
17
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 12 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 Dec 16, 2011, when this application, 13/328,773, was filed | Dec 16, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +12 days, USPTO patent term adjustment record | Dec 28, 2031 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 28, 2031 | High confidence |
This family
| US 8,292,805 | In force Apr 2030 | Apr 2030 |
| Application PCT/US2010/056074 | PCT application no patent term | no patent term |
| US 8,568,304 | this patent Dec 2031 | Dec 2031 |
| US 9,636,182 | In force no later than Nov 2029 | no later than Nov 2029 |
| US 8,795,162 | In force Dec 2029 | Dec 2029 |
| US 8,870,761 | In force no later than Nov 2029 | no later than Nov 2029 |
| US 8,936,551 | In force Dec 2031 | Dec 2031 |
| US 9,833,295 | Lapsed on the fee record Dec 2025 | Dec 2025 |
8 of 17 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 |
|---|---|---|---|
| Aug 15, 2012 Reel 28791, frame 621 | Vayser, Alex; Erismann, Fernando; Trauner, Kenneth B.; Gasson, Jonathan G.; Richardson, Derrick A. | Invuity, Inc. | Assignment of Assignor's Interest |
| Feb 28, 2014 Reel 32372, frame 240 | Invuity, Inc. | Healthcare Royalty Partners II, L.P. | Security Agreement |
| Jun 3, 2015 Reel 35819, frame 943 | Invuity, Inc. | Invuity, Inc. | Merger |
| Mar 17, 2017 Reel 42035, frame 801 | Healthcare Royalty Partners II, L.P. | Invuity, Inc. | Release of Security Interest |
| Mar 21, 2017 Reel 42052, frame 834 | Invuity, Inc. | Midcap Financial Trust, As Agent | Security Interest (Revolving Loan) |
| Mar 21, 2017 Reel 42053, frame 284 | Invuity, Inc. | Midcap Financial Trust, As Agent | Security Interest (TERM Loan) |
| Oct 23, 2018 Reel 47719, frame 34 | Midcap Financial Trust, As Agent | Invuity, Inc. | Release of Security Interest |
| Sep 21, 2026 Reel 76513, frame 803 | Invuity, Inc. | Stryker Corporation | Assignment of Assignor's 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
Dec 2031
Term ends Dec 28, 2031. No further fees fall due before then
Note
The 12 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 25% of utility patents granted in 2013 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.