Term ends Mar 29, 2036 · High confidence
20-year base term ends Mar 29, 2036
Held by PT SPE Subco LLC
Filed Sep 28, 2017 as application 15/562,638 · Granted Apr 27, 2021
Base term, 20 years from filing
Today
2016
2036
Clock starts
Mar 29, 2016
Mar 29, 2016
Term ends
Mar 29, 2036
Mar 29, 2036
Granted
Apr 27, 2021
Apr 27, 2021
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.
72
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 Mar 29, 2016, when application PCT/US2016/024717, the earliest non-provisional in its chain, was filed (this one was filed Sep 28, 2017) | Mar 29, 2036 | 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 | Mar 29, 2036 | High confidence |
This family
| Application 60/330,765 | Provisional application no patent term | no patent term |
| Application 60/330,745 | Provisional application no patent term | no patent term |
| Application 09/988,216 | Abandoned not computed | not computed |
| Application 60/331,515 | Provisional application no patent term | no patent term |
| Application PCT/US2002/034597 | PCT application no patent term | no patent term |
| US 7,050,155 | Lapsed on the fee record May 2014 | May 2014 |
| Application PCT/US2002/036942 | PCT application no patent term | no patent term |
| US 6,879,376 | Lapsed on the fee record Apr 2017 | Apr 2017 |
8 of 72 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 |
|---|---|---|---|
| Sep 28, 2017 Reel 43727, frame 240 | Bai, Xia; Xu, Wei; Gou, Linfeng; Wiacek, Robert; Monickam, Selina; Wehrenberg, Brian; Stabell, Amy; Bahadur, Maneesh; Williams, Serpil Gonen | Pixelligent Technologies LLC | Assignment of Assignor's Interest |
| Nov 1, 2022 Reel 61609, frame 859 | Pixelligent Technologies LLC | PT SPE Topco LLC | Assignment of Assignor's Interest |
| Nov 1, 2022 Reel 61610, frame 84 | PT SPE Topco LLC | PT SPE Subco LLC | Assignment of Assignor's Interest |
| Nov 1, 2022 Reel 61610, frame 528 | Pixelligent Technologies LLC; PT SPE Topco LLC; PT SPE Subco LLC | U.S. Bank Trust Company, National Association, as Collateral Agent | Security Interest |
| Jul 16, 2026 Reel 75297, frame 716 | US Bank Trust Company, National Association | Pixelligent Technologies LLC; PT SPE Topco LLC; PT SPE Subco LLC | Release of Security Interest |
| Jul 16, 2026 reel/frame not recorded | US Bank Trust Company, National Association | Pixelligent Technologies LLC | Release of Security Interest |
| Jul 16, 2026 reel/frame not recorded | US Bank Trust Company, National Association | PT SPE Topco LLC | Release of Security Interest |
| Jul 16, 2026 reel/frame not recorded | US Bank Trust Company, National Association | PT SPE Subco LLC | 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
Mar 2036
Term ends Mar 29, 2036. Maintenance fees still fall due before then
Citations
7
later US patents cite this one
That is top 25% 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.