Term ends May 27, 2029 · High confidence
20-year base term ends Jan 27, 2029
Held by Lutron Technology Company LLC
Filed Aug 5, 2010 as application 12/806,118 · Granted Jul 8, 2014
Base term plus 120 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Jan 27, 2009
Jan 27, 2009
Term ends
May 27, 2029
May 27, 2029
Granted
Jul 8, 2014
Jul 8, 2014
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
120
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.
29
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 120 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 Jan 27, 2009, when application 12/360,467, the earliest non-provisional in its chain, was filed (this one was filed Aug 5, 2010) | Jan 27, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +120 days, USPTO patent term adjustment record | May 27, 2029 | 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 | May 27, 2029 | High confidence |
This family
| US 8,179,787 | In force Feb 2030 | Feb 2030 |
| US 8,886,047 | In force Mar 2031 | Mar 2031 |
| Application PCT/US2010/000219 | PCT application no patent term | no patent term |
| US 9,509,525 | In force Sep 2031 | Sep 2031 |
| US 8,773,336 | this patent May 2029 | May 2029 |
| Application 12/806,114 | Abandoned not computed | not computed |
| US 8,521,035 | In force Oct 2029 | Oct 2029 |
| US 9,276,766 | In force Nov 2030 | Nov 2030 |
8 of 29 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 29, 2010 Reel 25314, frame 490 | Knapp, David J | Firefly Green Technologies Inc. | Assignment of Assignor's Interest |
| Feb 15, 2012 Reel 27708, frame 126 | Firefly Green Technologies, Inc. | Ketra, Inc. | Change of Name |
| Apr 17, 2018 Reel 45966, frame 790 | Ketra, Inc. | Lutron Ketra, LLC | Assignment of Assignor's Interest |
| Jan 8, 2021 Reel 54940, frame 343 | Lutron Ketra, LLC | Lutron Technology Company 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
May 2029
Term ends May 27, 2029. No further fees fall due before then
Note
The 120 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
165
later US patents cite this one
That is top 5% of utility patents granted in 2014 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.