Also listed on Net Power & Light, Inc., which filed it. The recorded assignments below show how it moved.
Term ends no later than Aug 14, 2032 · Medium confidence
20-year base term ends Mar 28, 2032
Held by Amazon Technologies, Inc.
Filed Mar 28, 2012 · Granted Jun 2, 2015
Base term plus 139 days of PTA
Today
2012
2032
Clock starts
Mar 28, 2012
Mar 28, 2012
Ends no later than
Aug 14, 2032
Aug 14, 2032
Granted
Jun 2, 2015
Jun 2, 2015
base term
patent term adjustment
fee events
Updated Nov 1, 2026 · includes USPTO assignment & status data published Nov 1, 2026 and grant & fee data published Oct 27, 2026 (weekly) · how we know
139
Days of term adjustment
Read from the USPTO PTA record, not recalculated here.
Unresolved
Terminal disclaimer
On file, reference document not resolved, so the date above is an upper bound. We do not guess the cap.
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.
5
Applications in this family
Applications sharing this one's continuity chain.
This patent's term runs 139 days past its 20-year base term on prosecution delay. A terminal disclaimer is on file with no resolved reference, so no cap is applied and none is guessed. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Mar 28, 2012 | Mar 28, 2032 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +139 days, USPTO PTA record | Aug 14, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer on file (approved), reference document not resolved | no cap applied, and none guessed | Medium 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 | no later than Aug 14, 2032 | Medium confidence |
This family
| Application 61/468,567 | Provisional application no patent term | no patent term |
| US 9,049,033 | this patent Aug 2032 | Aug 2032 |
| Application 13/529,196 | Abandoned not computed | not computed |
| US 9,379,900 | Lapsed (fee unpaid) Jun 2024 | Jun 2024 |
| US 8,994,779 | In force Jul 2032 | Jul 2032 |
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 |
|---|---|---|---|
| Jun 12, 2012 Reel 28362, frame 928 | Lemmey, Tara; Surin, Nikolay; Vonog, Stanislav | Net Power and Light, Inc. | Assignment of Assignor's Interest |
| Dec 23, 2013 Reel 31868, frame 927 | Net Power and Light, Inc. | Alsop Louie Capital, L.p.; Singtel INNOV8 Pte. Ltd. | Security Agreement |
| Dec 23, 2013 reel/frame not recorded | Net Power and Light, Inc. | Alsop Louie Capital, L.p. | Security Agreement |
| Dec 23, 2013 reel/frame not recorded | Net Power and Light, Inc. | Singtel INNOV8 Pte. Ltd. | Security Agreement |
| Feb 6, 2014 Reel 32158, frame 112 | Alsop Louie Capital, L.p.; Singtel INNOV8 Pte. Ltd. | Net Power and Light, Inc. | Release of Security Interest |
| Jun 4, 2014 Reel 33086, frame 1 | Net Power and Light, Inc. | Peninsula Technology Ventures, L.p.; Peninsula Venture Principals, L.p.; Alsop Louie Capital I, L.P. | Security Interest |
| Jun 4, 2014 reel/frame not recorded | Net Power and Light, Inc. | Peninsula Technology Ventures, L.p. | Security Interest |
| Jun 4, 2014 reel/frame not recorded | Net Power and Light, Inc. | Peninsula Venture Principals, L.p. | Security Interest |
| Jun 4, 2014 reel/frame not recorded | Net Power and Light, Inc. | Alsop Louie Capital I, L.P. | Security Interest |
| Oct 6, 2015 Reel 36740, frame 252 | Net Power & Light, Inc. | Peninsula Technology Ventures, L.p.; Peninsula Venture Principals, L.p.; Alsop Louie Capital 1, L.P.; Singtel INNOV8 Pte. Ltd.; TWB Investment Partnership II, LP; The Board of Trustees of the Leland Stanford Junior University (Daper I); Low, Lawrence B.; Brown, John Seely; Shin, Jeannie; Orrick Investments 2010, LLC; Orrick Investments 2011, LLC; Wang, Ta-hui Ty | Security Interest |
| Oct 6, 2015 reel/frame not recorded | Net Power & Light, Inc. | Peninsula Technology Ventures, L.p. | Security Interest |
| Oct 6, 2015 reel/frame not recorded | Net Power & Light, Inc. | Peninsula Venture Principals, L.p. | Security Interest |
Sources
Google Patents · The patent document at USPTO · Assignment records at USPTO
Maintenance fee events come from USPTO's own fee records. USPTO does not publish a per-patent fee page, so there is nothing to link to.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Aug 2032
Term ends no later than Aug 14, 2032. Maintenance fees still fall due before then
Note
A terminal disclaimer is on file and its reference is not resolved. No cap is applied and none is guessed
Note
The 139 days of PTA are read from the USPTO record, not recalculated by us
Open question
A terminal disclaimer is on file (approved) and its reference document is not resolved. A disclaimer would cap the term earlier than Aug 14, 2032. We will not guess the cap.
Citations
73
later US patents cite this one
That is top 10% of utility patents granted in 2015 in our data, the only group it is compared against.
How we rank
Every date shows its work: base rule, PTA, PTE, disclaimer caps, fee overlay, 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.