Collateral for a security interest recorded Nov 14, 2024 (JPMorgan Chase Bank, N.A.).
Term ends Feb 2, 2029 · High confidence
20-year base term ends Nov 5, 2027
Filed Nov 5, 2007 as application 11/935,224 · Granted Aug 10, 2010
Base term plus 455 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Nov 5, 2007
Nov 5, 2007
Term ends
Feb 2, 2029
Feb 2, 2029
Granted
Aug 10, 2010
Aug 10, 2010
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
455
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.
5
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 455 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 Nov 5, 2007, when this application, 11/935,224, was filed | Nov 5, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +455 days, USPTO patent term adjustment record | Feb 2, 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 | Feb 2, 2029 | High confidence |
This family
| US 7,774,556 | this patent Feb 2029 | Feb 2029 |
| US 8,156,288 | Lapsed on the fee record Apr 2024 | Apr 2024 |
| US 8,555,002 | Lapsed on the fee record Oct 2025 | Oct 2025 |
| US 9,262,333 | In force no later than Nov 2027 | no later than Nov 2027 |
| US 9,672,158 | Lapsed on the fee record Jun 2025 | Jun 2025 |
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 |
|---|---|---|---|
| Jan 4, 2008 Reel 20316, frame 980 | Karamcheti, Vijay; Okin, Kenneth A.; Ganapathy, Kumar; Singhai, Ashish; Parekh, Rajesh | Virident Systems Inc. | Assignment of Assignor's Interest |
| May 12, 2017 Reel 42456, frame 865 | Virident Systems, Inc. | Virident Systems, LLC | Change of Name |
| Jul 9, 2020 Reel 53180, frame 472 | Virident Systems, LLC | Western Digital Technologies, Inc. | Assignment of Assignor's Interest |
| Sep 29, 2020 Reel 53926, frame 446 | Western Digital Technologies, Inc. | JPMorgan Chase Bank, N.A., as Agent | Security Interest |
| Feb 8, 2022 Reel 58966, frame 321 | Jpmorgan Chase Bank, N.a. | Western Digital Technologies, Inc. | Release of Security Interest at Reel 053926 Frame 0446 |
| Aug 21, 2023 Reel 64715, frame 1 | Western Digital Technologies, Inc. | Jpmorgan Chase Bank, N.a. | Patent Collateral Agreement - A&r Loan Agreement |
| Aug 21, 2023 Reel 67045, frame 156 | Western Digital Technologies, Inc. | Jpmorgan Chase Bank, N.a. | Patent Collateral Agreement - DDTL Loan Agreement |
| May 29, 2024 Reel 67567, frame 682 | Western Digital Technologies, Inc. | SanDisk Technologies, Inc. | Assignment of Assignor's Interest |
| Jun 27, 2024 Reel 67982, frame 32 | SanDisk Technologies, Inc. | SanDisk Technologies, Inc. | Change of Name |
| Aug 23, 2024 Reel 68762, frame 494 | SanDisk Technologies, Inc. | JPMorgan Chase Bank, N.A., as the Agent | Patent Collateral Agreement |
| Oct 11, 2024 Reel 69168, frame 273 | SanDisk Technologies, Inc. | Western Digital Technologies, Inc. | Assignment of Assignor's Interest |
| Nov 14, 2024 Reel 69411, frame 208 | Western Digital Technologies, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement (SUPPLEMENTAL) |
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
Feb 2029
Term ends Feb 2, 2029. No further fees fall due before then
Note
The 455 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
157
later US patents cite this one
That is top 5% 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.
In force means the term is running and no lapse is on record. It is not a finding that the patent is valid.