Collateral for a security interest recorded May 3, 2023 (Bank of America, N.A.).
Term ended Nov 8, 2025 · High confidence
20-year base term ended Nov 8, 2025
Held by DigitalOptics Corporation Mems
Filed Feb 28, 2006 as application 11/364,099 · Granted Mar 18, 2008
Base term, 20 years from filing
Today
Term ended Nov 8, 2025
2005
2026
Clock starts
Nov 8, 2005
Nov 8, 2005
Term ended
Nov 8, 2025
Nov 8, 2025
Granted
Mar 18, 2008
Mar 18, 2008
base term
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
None
Term adjustment
No prosecution delay on this record.
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.
26
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 is its 20-year base term, with no adjustment for prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Nov 8, 2005, when applications 11/268,849 and 11/269,304, the earliest non-provisional applications in its chain, were filed (this one was filed Feb 28, 2006) | Nov 8, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Nov 8, 2025 | High confidence |
This family
| US 7,477,842 | Term ended Jul 2025 | Jul 2025 |
| US 7,646,969 | Term ended Nov 2026 | Nov 2026 |
| US 7,555,210 | In force Jan 2027 | Jan 2027 |
| US 7,813,634 | In force Jul 2027 | Jul 2027 |
| Application PCT/US2006/007024 | PCT application no patent term | no patent term |
| US 7,570,882 | In force Dec 2026 | Dec 2026 |
| US 7,345,827 | this patent Nov 2025 | Nov 2025 |
| US 7,838,322 | In force Oct 2028 | Oct 2028 |
8 of 26 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 |
|---|---|---|---|
| Mar 23, 2006 Reel 17357, frame 218 | Tang, Tony K.; Gutierrez, Roman C.; Calvet, Robert J.; Xu, Jing; Fossum, Eric R. | Siimpel, Inc. | Assignment of Assignor's Interest |
| Nov 16, 2009 Reel 23519, frame 715 | Siimpel Corporation | Scale Venture Partners II, L.P., as Collateral Agent | Patent Security Agreement |
| Mar 31, 2010 Reel 24170, frame 78 | Siimpel Corporation | Scale Venture Partners II, L.P. | Patent Security Agreement |
| May 7, 2010 Reel 24351, frame 353 | Scale Venture Partners II, L.P. | Siimpel Corporation | Release of Security Interest |
| Sep 24, 2010 Reel 25039, frame 247 | Siimpel Corporation | Tessera Mems Technologies, Inc. | Change of Name |
| Aug 23, 2011 Reel 26794, frame 897 | Tessera Mems Technologies, Inc. | DigitalOptics Corporation Mems | Change of Name |
| Dec 2, 2016 Reel 40797, frame 1 | Invensas Corporation; Tessera, Inc.; Tessera Advanced Technologies, Inc.; Ziptronix, Inc.; DigitalOptics Corporation; DigitalOptics Corporation Mems; DTS, LLC; DTS, Inc.; Phorus, Inc.; Ibiquity Digital Corporation | Royal Bank of Canada, as Collateral Agent | Security Interest |
| Jun 11, 2020 Reel 52920, frame 1 | Royal Bank of Canada | Tessera, Inc.; Invensas Bonding Technologies, Inc. (F/K/A Ziptronix, Inc.); FotoNation Corporation (F/K/A DigitalOptics Corporation and F/K/A DigitalOptics Corporation Mems); Invensas Corporation; Tessera Advanced Technologies, Inc.; DTS, Inc.; DTS LLC; Phorus, Inc.; Ibiquity Digital Corporation | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Tessera, Inc. | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Invensas Bonding Technologies, Inc. (F/K/A Ziptronix, Inc.) | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | FotoNation Corporation (F/K/A DigitalOptics Corporation and F/K/A DigitalOptics Corporation Mems) | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Invensas Corporation | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Tessera Advanced Technologies, Inc. | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | DTS, Inc. | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | DTS LLC | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Phorus, Inc. | Release of Security Interest |
| Jun 11, 2020 reel/frame not recorded | Royal Bank of Canada | Ibiquity Digital Corporation | Release of Security Interest |
| May 3, 2023 Reel 63529, frame 272 | Adeia Guides Inc.; Adeia Imaging LLC; Adeia Media Holdings LLC; Adeia Media Solutions Inc.; Adeia Semiconductor Advanced Technologies Inc.; Adeia Semiconductor Bonding Technologies Inc.; Adeia Semiconductor Inc.; Adeia Semiconductor Solutions LLC; Adeia Semiconductor Technologies LLC; Adeia Solutions LLC | Bank of America, N.A., as Collateral Agent | Security 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.
Citations
7
later US patents cite this one
That is below the median of utility patents granted in 2008 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.