Also listed on Grass Valley Limited, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Mar 20, 2024 (MS Private Credit Administrative Services LLC).
Term ends Jan 19, 2031 · Medium confidence
20-year base term ended Apr 18, 2021
Why Medium: A parent in the chain could not be resolved.
Held by Grass Valley Canada
Filed Sep 20, 2002 as application 10/247,783 · Granted Aug 31, 2021
Base term plus 3563 days of patent term adjustment (USPTO delay)
Today
2001
2031
Clock starts
Apr 18, 2001
Apr 18, 2001
Term ends
Jan 19, 2031
Jan 19, 2031
Granted
Aug 31, 2021
Aug 31, 2021
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
3,563
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
1 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. This counts the ones the record shows paid.
23
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 3563 days past its 20-year base term on prosecution delay. 1 of 2 maintenance fees is paid so far. Confidence: Medium. 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 Apr 18, 2001, when application 09/836,239, the earliest non-provisional in its chain, was filed (this one was filed Sep 20, 2002); a parent in its chain could not be resolved (the next row) | Apr 18, 2021 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +3563 days, USPTO patent term adjustment record | Jan 19, 2031 | 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 | 1 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 19, 2031 | Medium confidence |
This family
| US 6,909,874 | Lapsed on the fee record Jun 2017 | Jun 2017 |
| US 7,302,644 | Term ended Jun 2020 | Jun 2020 |
| US 8,006,184 | Term ended Mar 2024 | Mar 2024 |
| US 11,109,114 | this patent Jan 2031 | Jan 2031 |
| US 7,835,920 | Lapsed on the fee record Nov 2022 | Nov 2022 |
| US 9,123,380 | Term ended Sep 2026 | Sep 2026 |
| Application 10/434,460 | Abandoned not computed | not computed |
| US 8,726,187 | Lapsed on the fee record May 2018 | May 2018 |
8 of 23 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 |
|---|---|---|---|
| Dec 19, 2002 Reel 13304, frame 905 | Holtz, Alex; Larocque, Marcel; Benson, John R.; Couch, William H.; Hoeppner, Charles M.; McAllister, Benjamin Jay; Snyder, Robert J.; Tingle, Keith Gregory | Parkervision, Inc. | Assignment of Assignor's Interest |
| Jan 23, 2008 Reel 20405, frame 608 | Thomson Licensing S.A. | Thomson Licensing | Assignment of Assignor's Interest |
| Jan 23, 2008 Reel 20405, frame 650 | Parkervision, Inc. | Thomson Licensing S.A. | Assignment of Assignor's Interest |
| Mar 28, 2011 Reel 26028, frame 71 | Thomson Licensing | GVBB Holdings S.A.R.L. | Assignment of Assignor's Interest |
| Mar 17, 2021 Reel 56100, frame 612 | GVBB Holdings S.A.R.L. | Grass Valley Canada | Assignment of Assignor's Interest |
| Mar 20, 2024 Reel 66850, frame 869 | Grass Valley Canada; Grass Valley Limited | MS Private Credit Administrative Services LLC | Security Interest |
| Dec 12, 2025 Reel 73959, frame 584 | MS Private Credit Administrative Services LLC | MGG Investment Group LP | Assignment of Intellectual Property Security Agreements |
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
Jan 2031
Term ends Jan 19, 2031. Maintenance fees still fall due before then
Note
The 3563 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
382
later US patents cite this one
That is top 1% of utility patents granted in 2021 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.