Term ends Aug 8, 2028 · High confidence
20-year base term ended Sep 27, 2026
Held by Salesforce, Inc.
Filed Sep 27, 2006 as application 11/528,753 · Granted Jun 9, 2015
Base term plus 681 days of patent term adjustment (USPTO delay)
Today
2006
2028
Clock starts
Sep 27, 2006
Sep 27, 2006
Term ends
Aug 8, 2028
Aug 8, 2028
Granted
Jun 9, 2015
Jun 9, 2015
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
681
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
2 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.
6
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 681 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. 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 Sep 27, 2006, when this application, 11/528,753, was filed | Sep 27, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +681 days, USPTO patent term adjustment record | Aug 8, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 8, 2028 | High confidence |
This family
| US 9,053,461 | this patent Aug 2028 | Aug 2028 |
| Application PCT/US2006/038728 | PCT application no patent term | no patent term |
| US 9,762,530 | Term ended Sep 2026 | Sep 2026 |
| US 10,701,026 | In force Dec 2026 | Dec 2026 |
| US 11,240,194 | Term ended Oct 2026 | Oct 2026 |
| US 11,729,132 | Term ended Sep 2026 | Sep 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 |
|---|---|---|---|
| Sep 27, 2006 Reel 18368, frame 1 | Vemulapalli, Rajanikanth; Lu, Ming J.; Kota, Jayarama K. | Yahoo! Inc. | Assignment of Assignor's Interest |
| Apr 18, 2016 Reel 38383, frame 466 | Yahoo! Inc. | Excalibur IP, LLC | Assignment of Assignor's Interest |
| Jun 1, 2016 Reel 38951, frame 295 | Excalibur IP, LLC | Yahoo! Inc. | Assignment of Assignor's Interest |
| Jun 3, 2016 Reel 38950, frame 592 | Yahoo! Inc. | Excalibur IP, LLC | Assignment of Assignor's Interest |
| Jan 30, 2020 Reel 51761, frame 307 | Excalibur IP, LLC | Slack Technologies, Inc. | Assignment of Assignor's Interest |
| Jun 5, 2020 Reel 52853, frame 153 | Acacia Research Group LLC; American Vehicular Sciences LLC; Bonutti Skeletal Innovations LLC; Cellular Communications Equipment LLC; Innovative Display Technologies LLC; Lifeport Sciences LLC; Limestone Memory Systems LLC; Merton Acquisition Holdco LLC; Mobile Enhancement Solutions LLC; Monarch Networking Solutions LLC; Nexus Display Technologies LLC; Parthenon Unified Memory Architecture LLC; R2 Solutions LLC; Saint Lawrence Communications LLC; Stingray IP Solutions LLC; Super Interconnect Technologies LLC; Teleconference Systems LLC; Unification Technologies LLC | Starboard Value Intermediate Fund LP, as Collateral Agent | Patent Security Agreement |
| Jul 8, 2020 Reel 53654, frame 254 | Starboard Value Intermediate Fund LP | Acacia Research Group LLC; American Vehicular Sciences LLC; Bonutti Skeletal Innovations LLC; Cellular Communications Equipment LLC; Innovative Display Technologies LLC; Lifeport Sciences LLC; Limestone Memory Systems LLC; Mobile Enhancement Solutions LLC; Monarch Networking Solutions LLC; Nexus Display Technologies LLC; Parthenon Unified Memory Architecture LLC; R2 Solutions LLC; Saint Lawrence Communications LLC; Stingray IP Solutions LLC; Super Interconnect Technologies LLC; Teleconference Systems LLC; Unification Technologies LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Acacia Research Group LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | American Vehicular Sciences LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Bonutti Skeletal Innovations LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Cellular Communications Equipment LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Innovative Display Technologies LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Lifeport Sciences LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Limestone Memory Systems LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Mobile Enhancement Solutions LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Monarch Networking Solutions LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Nexus Display Technologies LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Parthenon Unified Memory Architecture LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | R2 Solutions LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Saint Lawrence Communications LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Stingray IP Solutions LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Super Interconnect Technologies LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Teleconference Systems LLC | Release of Security Interest in Patents |
| Jul 8, 2020 reel/frame not recorded | Starboard Value Intermediate Fund LP | Unification Technologies LLC | Release of Security Interest in Patents |
| Dec 30, 2020 Reel 54981, frame 377 | Starboard Value Intermediate Fund LP | R2 Solutions LLC | Corrective Assignment to Correct the Assignee Name Previously Recorded on Reel 053654 Frame 0254. Assignor(S) Hereby Confirms the Release of Security Interest Granted Pursuant to the Patent Security Agreement Previously Recorded. |
| Mar 29, 2021 Reel 56832, frame 1 | R2 Solutions LLC | Starboard Value Intermediate Fund LP, as Collateral Agent | Corrective Assignment to Correct the the Assignor Name Previously Recorded at Reel: 052853 Frame: 0153. Assignor(S) Hereby Confirms the Assignment. |
| Jul 29, 2021 Reel 57475, frame 404 | Slack Technologies, Inc. | Slack Technologies, LLC | Merger |
| Aug 18, 2023 Reel 64642, frame 564 | Slack Technologies, LLC | Salesforce, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Aug 2028
Term ends Aug 8, 2028. Maintenance fees still fall due before then
Note
The 681 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
45
later US patents cite this one
That is top 10% of utility patents granted in 2015 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.