Term ends Nov 27, 2033 · High confidence
20-year base term ends Apr 18, 2033
Held by Wangs Alliance Corporation
Filed Apr 18, 2013 as application 13/865,760 · Granted Apr 12, 2016
Base term plus 223 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
Apr 18, 2013
Apr 18, 2013
Term ends
Nov 27, 2033
Nov 27, 2033
Granted
Apr 12, 2016
Apr 12, 2016
base term
patent term adjustment
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
223
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
49
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 223 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are 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 18, 2013, when this application, 13/865,760, was filed | Apr 18, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +223 days, USPTO patent term adjustment record | Nov 27, 2033 | 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Nov 27, 2033 | High confidence |
This family
| Application PCT/US2010/049531 | PCT application no patent term | no patent term |
| US 8,502,465 | Lapsed on the fee record Aug 2025 | Aug 2025 |
| US 9,293,667 | In force Aug 2031 | Aug 2031 |
| Application 13/480,767 | Abandoned not computed | not computed |
| US 9,310,052 | this patent Nov 2033 | Nov 2033 |
| Application 13/886,547 | Abandoned not computed | not computed |
| US 9,360,190 | In force Feb 2034 | Feb 2034 |
| US 8,888,332 | In force Jun 2033 | Jun 2033 |
8 of 49 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 |
|---|---|---|---|
| Jul 26, 2013 Reel 30887, frame 244 | Shum, Frank | Soraa, Inc. | Assignment of Assignor's Interest |
| Sep 5, 2014 Reel 33691, frame 582 | Soraa, Inc. | Special Value Continuation Partners, LP; Tennenbaum Opportunities Partners V, LP; TCPC SBIC, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | Special Value Continuation Partners, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | Tennenbaum Opportunities Partners V, LP | Security Interest |
| Sep 5, 2014 reel/frame not recorded | Soraa, Inc. | TCPC SBIC, LP | Security Interest |
| Feb 20, 2020 Reel 51974, frame 413 | Special Value Continuation Partners, LP; Tennenbaum Opportunities Partners V, LP; TCPC SBIC, LP; El Dorado Investment Company; Tennebaum Capital Partners, LLC | Soraa, Inc. | Release of Security Interest |
| May 21, 2020 Reel 52725, frame 22 | Soraa, Inc. | Ecosense Lighting, Inc. | Assignment of Assignor's Interest |
| Feb 21, 2022 Reel 59239, frame 614 | Ecosense Lighting Inc. | Korrus, Inc. | Nunc Pro Tunc Assignment |
| Mar 15, 2023 Reel 62986, frame 937 | Korrus, Inc. | Wangs Alliance 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.
What's changing
Nov 2033
Term ends Nov 27, 2033. Maintenance fees still fall due before then
Note
The 223 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
30
later US patents cite this one
That is top 25% of utility patents granted in 2016 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.