Also listed on Ruud Lighting, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Sep 23, 2029 · High confidence
20-year base term ends Jul 15, 2028
Held by Led-IP Management, LLC
Filed May 29, 2009 as application 12/475,194 · Granted Jan 8, 2013
Base term plus 435 days of patent term adjustment (USPTO delay)
Today
2008
2029
Clock starts
Jul 15, 2008
Jul 15, 2008
Term ends
Sep 23, 2029
Sep 23, 2029
Granted
Jan 8, 2013
Jan 8, 2013
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
435
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,388,193, to Sep 23, 2029. The term already ends on or before that date, so the cap shortened nothing.
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.
83
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 435 days past its 20-year base term on prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 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 Jul 15, 2008, when application 12/173,721, the earliest non-provisional in its chain, was filed (this one was filed May 29, 2009) | Jul 15, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +435 days, USPTO patent term adjustment record | Sep 23, 2029 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,388,193) | resolves to Sep 23, 2029, no earlier than this term, so no change | 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 | Sep 23, 2029 | High confidence |
This family
| US 8,388,193 | In force Jan 2030 | Jan 2030 |
| US 9,428,688 | In force May 2029 | May 2029 |
| US 8,287,759 | In force Nov 2030 | Nov 2030 |
| Application PCT/US2009/003197 | PCT application no patent term | no patent term |
| US 8,348,475 | this patent Sep 2029 | Sep 2029 |
| Application PCT/US2009/063693 | PCT application no patent term | no patent term |
| US 9,464,225 | In force Nov 2028 | Nov 2028 |
| Application PCT/US2010/001314 | PCT application no patent term | no patent term |
8 of 83 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 |
|---|---|---|---|
| Nov 21, 2011 Reel 27261, frame 865 | Wilcox, Kurt S.; Strom, Christopher | Ruud Lighting, Inc. | Assignment of Assignor's Interest |
| Aug 13, 2014 Reel 33525, frame 529 | Ruud Lighting, Inc. | Cree, Inc. | Merger |
| Jul 26, 2019 Reel 49880, frame 524 | Cree, Inc. | Ideal Industries Lighting LLC | Assignment of Assignor's Interest |
| Sep 13, 2023 Reel 64897, frame 413 | Ideal Industries Lighting LLC | FGI Worldwide LLC | Security Interest |
| May 16, 2026 Reel 76279, frame 340 | Clna Holdings, LLC; Cree Lighting USA LLC; Cree Lighting Canada Corp.; E-Conolight LLC | Lumen Acquisition Holdings, LLC | Assignment of Assignor's Interest |
| May 22, 2026 Reel 75624, frame 358 | Lumen Acquisition Holdings, LLC | Led-IP Management, LLC | 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
Sep 2029
Term ends Sep 23, 2029. No further fees fall due before then
Note
The 435 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,388,193, ends no earlier than this term, so it caps nothing.
Citations
85
later US patents cite this one
That is top 10% 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.