Also listed on Oasis Silicon Systems, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Dec 16, 2026 · High confidence
20-year base term ended Oct 15, 2024
Filed Oct 15, 2004 as application 10/966,254 · Granted Dec 15, 2009
Base term plus 792 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Oct 15, 2004
Oct 15, 2004
Term ends
Dec 16, 2026
Dec 16, 2026
Granted
Dec 15, 2009
Dec 15, 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
792
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 792 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 Oct 15, 2004, when this application, 10/966,254, was filed | Oct 15, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +792 days, USPTO patent term adjustment record | Dec 16, 2026 | 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 | Dec 16, 2026 | 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 |
|---|---|---|---|
| Oct 15, 2004 Reel 15904, frame 775 | Green, Christopher M.; Ho, Horace C.; Knapp, David J. | Oasis Silicon Systems, Inc. | Assignment of Assignor's Interest |
| Mar 23, 2006 Reel 17353, frame 207 | Oasis Silicon Systems, Inc. | Standard Microsystems Corporation | Merger |
| Dec 11, 2017 Reel 44820, frame 715 | Standard Microsystems Corporation | Microchip Technology Incorporated | Merger |
| Apr 24, 2020 Reel 53311, frame 305 | Microchip Technology Inc.; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | Security Interest |
| May 30, 2020 Reel 53466, frame 11 | JPMorgan Chase Bank, N.A, as Administrative Agent | Microchip Technology Inc.; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Release of Security Interest |
| May 30, 2020 reel/frame not recorded | JPMorgan Chase Bank, N.A, as Administrative Agent | Microchip Technology Inc. | Release of Security Interest |
| May 30, 2020 reel/frame not recorded | JPMorgan Chase Bank, N.A, as Administrative Agent | Silicon Storage Technology, Inc. | Release of Security Interest |
| May 30, 2020 reel/frame not recorded | JPMorgan Chase Bank, N.A, as Administrative Agent | Atmel Corporation | Release of Security Interest |
| May 30, 2020 reel/frame not recorded | JPMorgan Chase Bank, N.A, as Administrative Agent | Microsemi Corporation | Release of Security Interest |
| May 30, 2020 reel/frame not recorded | JPMorgan Chase Bank, N.A, as Administrative Agent | Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Jun 5, 2020 Reel 53468, frame 705 | Microchip Technology Inc.; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Wells Fargo Bank, National Association | Security Interest |
| Dec 24, 2020 Reel 55671, frame 612 | Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Wells Fargo Bank, National Association, as Collateral Agent | Security Interest |
| Jun 4, 2021 Reel 57935, frame 474 | Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Wells Fargo Bank, National Association, as Notes Collateral Agent | Security Interest |
| Mar 10, 2022 Reel 59863, frame 400 | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Mar 10, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated | Release of Security Interest |
| Mar 10, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Silicon Storage Technology, Inc. | Release of Security Interest |
| Mar 10, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Atmel Corporation | Release of Security Interest |
| Mar 10, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Corporation | Release of Security Interest |
| Mar 10, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Mar 11, 2022 Reel 59363, frame 1 | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Mar 11, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated | Release of Security Interest |
| Mar 11, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Silicon Storage Technology, Inc. | Release of Security Interest |
| Mar 11, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Atmel Corporation | Release of Security Interest |
| Mar 11, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Corporation | Release of Security Interest |
| Mar 11, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Mar 14, 2022 Reel 60894, frame 437 | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated; Silicon Storage Technology, Inc.; Atmel Corporation; Microsemi Corporation; Microsemi Storage Solutions, Inc. | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microchip Technology Incorporated | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Silicon Storage Technology, Inc. | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Atmel Corporation | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Corporation | Release of Security Interest |
| Mar 14, 2022 reel/frame not recorded | Wells Fargo Bank, National Association, as Notes Collateral Agent | Microsemi Storage Solutions, Inc. | Release of 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.
What's changing
Dec 2026
Term ends Dec 16, 2026. No further fees fall due before then
Note
The 792 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
21
later US patents cite this one
That is above 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.