Lapsed Feb 16, 2018 on the fee record · High confidence
20-year base term ends Dec 28, 2026
Second maintenance fee unpaid; grace period ended.
Filed Dec 28, 2006 as application 11/617,430 · Granted Feb 16, 2010
Base term, 20 years from filing, plus 342 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Lapsed Feb 16, 2018
2006
2027
Clock starts
Dec 28, 2006
Dec 28, 2006
No longer in force
Feb 16, 2018
Feb 16, 2018
Granted
Feb 16, 2010
Feb 16, 2010
Term would have run to
Feb 12, 2027
Feb 12, 2027
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
342
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 7,601,049.
1 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.
7
Family applications on record here
Applications sharing this one's continuity chain whose file history this site holds. The family may have others.
Its term would have run to Feb 12, 2027: its 20-year base term plus 342 days of term adjustment for prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Dec 28, 2006, when this application, 11/617,430, was filed | Dec 28, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +342 days, USPTO patent term adjustment record | Dec 5, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 7,601,049) | capped to Feb 12, 2027 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 1 of 3 maintenance fees paid | lapsed Feb 16, 2018 | High confidence |
| Computed term end | The steps above, in order | Feb 16, 2018 | High confidence |
This family
| US 7,662,023 | this patent Feb 2018 | Feb 2018 |
| US 7,601,049 | In force Feb 2027 | Feb 2027 |
| Application PCT/US2007/060981 | PCT application no patent term | no patent term |
| US 7,930,058 | In force Aug 2028 | Aug 2028 |
| Application PCT/US2008/088452 | PCT application no patent term | no patent term |
| US 7,927,185 | In force Dec 2026 | Dec 2026 |
| US 8,145,342 | In force Dec 2026 | Dec 2026 |
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 |
|---|---|---|---|
| Apr 9, 2007 Reel 19136, frame 568 | Vandamme, Roland R; Bhagavat, Milind S | Memc Electronic Materials, Inc. | Assignment of Assignor's Interest |
| Apr 1, 2011 Reel 26064, frame 720 | Memc Electronic Materials, Inc.; SunEdison LLC; Solaicx | Bank Of America, N.a. | Security Agreement |
| Oct 1, 2012 Reel 29057, frame 810 | NVT, LLC; Sun Edison LLC; Solaicx, Inc.; Memc Electronic Materials, Inc. | Goldman Sachs Bank USA | Security Agreement |
| Dec 26, 2013 Reel 31870, frame 31 | Bank Of America, N.a. | Enflex Corporation; Sun Edison LLC; Solaicx; SunEdison, Inc. (F/K/A Memc Electronic Materials, Inc.) | Release of Security Interest |
| Dec 26, 2013 Reel 31870, frame 92 | Goldman Sachs Bank USA | NVT, LLC; Sun Edison LLC; Solaicx; SunEdison, Inc. (F/K/A Memc Electronic Materials, Inc.) | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Bank Of America, N.a. | Enflex Corporation | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Bank Of America, N.a. | Sun Edison LLC | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Bank Of America, N.a. | Solaicx | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Bank Of America, N.a. | SunEdison, Inc. (F/K/A Memc Electronic Materials, Inc.) | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Goldman Sachs Bank USA | NVT, LLC | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Goldman Sachs Bank USA | Sun Edison LLC | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Goldman Sachs Bank USA | Solaicx | Release of Security Interest |
| Dec 26, 2013 reel/frame not recorded | Goldman Sachs Bank USA | SunEdison, Inc. (F/K/A Memc Electronic Materials, Inc.) | Release of Security Interest |
| Jan 30, 2014 Reel 32177, frame 359 | SunEdison, Inc.; Solaicx; Sun Edison, LLC; NVT, LLC | Deutsche Bank AG New York Branch | Security Agreement |
| Mar 3, 2014 Reel 32382, frame 724 | Deutsche Bank AG New York Branch | NVT, LLC; Sun Edison LLC; Solaicx; SunEdison, Inc. | Release of Security Interest |
| Mar 3, 2014 reel/frame not recorded | Deutsche Bank AG New York Branch | NVT, LLC | Release of Security Interest |
| Mar 3, 2014 reel/frame not recorded | Deutsche Bank AG New York Branch | Sun Edison LLC | Release of Security Interest |
| Mar 3, 2014 reel/frame not recorded | Deutsche Bank AG New York Branch | Solaicx | Release of Security Interest |
| Mar 3, 2014 reel/frame not recorded | Deutsche Bank AG New York Branch | SunEdison, Inc. | Release of Security Interest |
| May 27, 2014 Reel 33023, frame 430 | Memc Electronic Materials, Inc. | SunEdison Semiconductor Limited (UEN201334164H) | Assignment of Assignor's Interest |
| Jun 6, 2014 Reel 33099, frame 1 | SunEdison Semiconductor Limited | SunEdison Semiconductor Technology Pte. Ltd. | Notice of License Agreement |
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.
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Alerts on its grants, lapses and transfers.
What's changing
Note
The 342 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 7,601,049.
Citations
9
later US patents cite this one
That is below the median of utility patents granted in 2010 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.