Term ends Mar 25, 2028 · High confidence
20-year base term ended Mar 31, 2024
Held by Mips Holding, Inc.
Filed Mar 31, 2004 as application 10/816,328 · Granted Sep 10, 2013
Base term plus 1455 days of patent term adjustment (USPTO delay)
Today
2004
2028
Clock starts
Mar 31, 2004
Mar 31, 2004
Term ends
Mar 25, 2028
Mar 25, 2028
Granted
Sep 10, 2013
Sep 10, 2013
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
1,455
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.
3
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 1455 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 Mar 31, 2004, when this application, 10/816,328, was filed | Mar 31, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1455 days, USPTO patent term adjustment record | Mar 25, 2028 | 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 | Mar 25, 2028 | High confidence |
This family
| US 8,533,716 | this patent Mar 2028 | Mar 2028 |
| US 9,779,042 | Term ended Jul 2025 | Jul 2025 |
| US 10,268,609 | In force Nov 2026 | Nov 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 |
|---|---|---|---|
| Jul 1, 2004 Reel 15525, frame 358 | Lippett, Mark David | Ignios Limited | Assignment of Assignor's Interest |
| Feb 13, 2009 Reel 22248, frame 521 | Fujitsu Limited | Fujitsu Microelectronics Limited | Assignment of Assignor's Interest |
| Jan 28, 2010 reel/frame not recorded | Ignios Limited | Coware | Assignment of Assignor's Interest |
| Jan 28, 2010 reel/frame not recorded | Ignios Limited | Fujitsu Limited | Assignment of Assignor's Interest |
| Jan 28, 2010 Reel 23867, frame 852 | Ignios Limited | Coware; Fujitsu Limited | Assignment of Assignor's Interest |
| Jan 26, 2011 Reel 25703, frame 401 | Coware, Inc. | Coware, LLC | Change of Name |
| Feb 7, 2011 Reel 25754, frame 505 | Coware, LLC | Synopsys, Inc. | Assignment of Assignor's Interest |
| Dec 5, 2011 Reel 27327, frame 143 | Fujitsu Microelectronics Limited | Fujitsu Semiconductor Limited | Change of Name |
| Jun 23, 2026 Reel 75801, frame 204 | Synopsys, Inc. | Mips Holding, Inc. | Assignment of Assignor's 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
Mar 2028
Term ends Mar 25, 2028. No further fees fall due before then
Note
The 1455 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
77
later US patents cite this one
That is top 10% of utility patents granted in 2013 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.