Term ends Sep 8, 2027 · High confidence
20-year base term ended Apr 6, 2026
Filed Apr 6, 2006 as application 11/400,706 · Granted Dec 29, 2009
Base term plus 520 days of patent term adjustment (USPTO delay)
Today
2006
2027
Clock starts
Apr 6, 2006
Apr 6, 2006
Term ends
Sep 8, 2027
Sep 8, 2027
Granted
Dec 29, 2009
Dec 29, 2009
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
520
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.
This patent's term runs 520 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 Apr 6, 2006, when this application, 11/400,706, was filed | Apr 6, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +520 days, USPTO patent term adjustment record | Sep 8, 2027 | 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 | Sep 8, 2027 | High confidence |
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 |
|---|---|---|---|
| Apr 6, 2006 Reel 17775, frame 345 | Roberts, Roy D.; O'hare, Daniel J.; Huynh James P.; Phonpradith, Say | Vaconics Lighting, Inc. | Assignment of Assignor's Interest |
| May 23, 2008 Reel 20986, frame 865 | Vaconics Lighting, Inc. | PerkinElmer Optoelectronics NC, Inc. | Assignment of Assignor's Interest |
| Oct 7, 2010 Reel 25095, frame 972 | Vaconics Lighting, Inc. | PerkinElmer Optoelectronics NC, Inc. | Corrective Assignment to Correct the Address of the Assignee to "44370 Christy Street, Fremont, Ca 94538, U.s.a." Previously Recorded on Reel 020986 Frame 0865. Assignor(S) Hereby Confirms the Assignment of Assignor's Interest.. |
| Oct 8, 2010 Reel 25105, frame 781 | PerkinElmer Optoelectronics NC, Inc. | PerkinElmer Illumination, Inc. | Change of Name |
| Feb 15, 2011 Reel 25810, frame 453 | PerkinElmer Illumination, Inc. | Excelitas Technologies Illumination, Inc. | Change of Name |
| Feb 17, 2011 Reel 25814, frame 276 | PerkinElmer Sensors, Inc.; PerkinElmer Illumination, Inc.; PerkinElmer Led Solutions, Inc. | UBS AG, Stamford Branch | Security Agreement |
| Apr 10, 2013 Reel 30187, frame 480 | Excelitas Technologies Illumination, Inc.; Excelitas Technologies Led Solutions, Inc.; Excelitas Technologies Sensors, Inc.; Kaiser Systems, Inc. | Excelitas Technologies Sensors, Inc. | Merger |
| Apr 10, 2013 Reel 30187, frame 661 | Excelitas Technologies Sensors, Inc.; Excelitas Technologies Corp. | Excelitas Technologies Corp. | Merger |
| Nov 3, 2013 Reel 31558, frame 873 | Excelitas Technologies Corp. | UBS AG, Stamford Branch | First Lien Patent Security Agreement |
| Nov 12, 2013 Reel 31626, frame 852 | UBS AG, Stamford Branch | Excelitas Technologies Corp. (Successor-in-Interest to PerkinElmer Sensors, Inc., PerkinElmer Illumination, Inc. and PerkinElmer Led Solutions, Inc.) | Release of Patent Security Agreement Recorded at Reel 025814/FRAME 0276 |
| Jan 17, 2014 Reel 32086, frame 605 | Excelitas Technologies Corp. | Credit Suisse AG, Cayman Islands Branch, as Collateral Agent | Second Lien Patent Security Agreement |
| Sep 15, 2016 Reel 40043, frame 135 | Credit Suisse AG, Cayman Islands Branch, as Existing Agent | Cortland Products Corp., as Successor Agent | Assignment of Security Interest in Patents Second Lien |
| Dec 1, 2017 Reel 44591, frame 966 | Cortland Products Corp. | Excelitas Technologies Corp. | Release of Security Interest |
| Dec 1, 2017 Reel 44621, frame 82 | UBS AG, Stamford Branch | Excelitas Technologies Corp. | Release of First Lien Security Interest in Patents Recorded at Reel 031558/FRAME 0873 |
| Dec 5, 2017 Reel 44695, frame 525 | Excelitas Technologies Corp. | JPMorgan Chase Bank, N.A., as Collateral Agent | First Lien Intellectual Property Security Agreement |
| Dec 5, 2017 Reel 44695, frame 780 | Excelitas Technologies Corp. | Royal Bank of Canada, as Collateral Agent | Second Lien Intellectual Property Security Agreement |
| Aug 25, 2020 Reel 53588, frame 892 | Excelitas Technologies Corp. | Excelitas Technologies Singapore Pte. Ltd. | Assignment of Assignor's Interest |
| Aug 12, 2022 Reel 61161, frame 607 | JPMorgan Chase Bank, N.A., as Collateral Agent | Excelitas Technologies Corp. | Release of First Lien Security Interest in Intellectual Property |
| Aug 12, 2022 Reel 61161, frame 685 | Royal Bank of Canada, as Collateral Agent | Excelitas Technologies Corp. | Release of Second Lien Security Interest in Intellectual Property |
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
Sep 2027
Term ends Sep 8, 2027. No further fees fall due before then
Note
The 520 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
1
later US patent cites this one
That is below the median of utility patents granted in 2009 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.