Term ended Nov 8, 2023 · High confidence
20-year base term ended Jun 21, 2021
Filed Jun 21, 2001 as application 09/886,958 · Granted Jun 5, 2007
Base term plus 870 days of patent term adjustment (USPTO delay)
Today
Term ended Nov 8, 2023
2001
2026
Clock starts
Jun 21, 2001
Jun 21, 2001
Term ended
Nov 8, 2023
Nov 8, 2023
Granted
Jun 5, 2007
Jun 5, 2007
base term
patent term adjustment
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
870
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.
111
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 870 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Jun 21, 2001, when this application, 09/886,958, was filed | Jun 21, 2021 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +870 days, USPTO patent term adjustment record | Nov 8, 2023 | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Nov 8, 2023 | High confidence |
This family
| US 7,186,003 | Term ended May 2018 | May 2018 |
| US 7,064,498 | Term ended Aug 2017 | Aug 2017 |
| US 6,577,080 | Term ended Aug 2017 | Aug 2017 |
| US 6,608,453 | Term ended Aug 2017 | Aug 2017 |
| US 7,353,071 | Term ended Jul 2023 | Jul 2023 |
| US 7,228,190 | this patent Nov 2023 | Nov 2023 |
| US 7,031,920 | Term ended Sep 2019 | Sep 2019 |
| US 6,888,322 | Term ended Oct 2017 | Oct 2017 |
8 of 111 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 |
|---|---|---|---|
| Jan 14, 2002 Reel 12490, frame 931 | Dowling, Kevin J.; Johnston, Scott | Color Kinetics Incorporated | Assignment of Assignor's Interest |
| Jul 1, 2008 Reel 21172, frame 250 | Color Kinetics Incorporated | Philips Solid-State Lighting Solutions, Inc. | Change of Name |
| Jul 22, 2016 Reel 39428, frame 310 | Philips Solid-State Lighting Solutions, Inc. | Philips Lighting North America Corporation | Change of Name |
| Oct 28, 2019 Reel 50836, frame 669 | Philips Lighting North America Corporation | Signify North America Corporation | Change of Name |
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
Note
The 870 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
470
later US patents cite this one
That is top 1% of utility patents granted in 2007 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.