Also listed on Knowles Electronics Asia Pte. Ltd., an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Mar 22, 2029 · High confidence
20-year base term ends Oct 16, 2027
Filed May 7, 2009 as application 12/513,881 · Granted Oct 9, 2012
Base term plus 523 days of patent term adjustment (USPTO delay)
Today
2007
2029
Clock starts
Oct 16, 2007
Oct 16, 2007
Term ends
Mar 22, 2029
Mar 22, 2029
Granted
Oct 9, 2012
Oct 9, 2012
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
523
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.
2
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 523 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 16, 2007, when application PCT/IB2007/054210, the earliest non-provisional in its chain, was filed (this one was filed May 7, 2009) | Oct 16, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +523 days, USPTO patent term adjustment record | Mar 22, 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 | Mar 22, 2029 | High confidence |
This family
| US 8,284,964 | this patent Mar 2029 | Mar 2029 |
1 of 2 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 |
|---|---|---|---|
| May 7, 2009 Reel 22650, frame 600 | Windischberger, Susanne; Lutz, Josef; Frasl, Ewald | Nxp, B.v. | Assignment of Assignor's Interest |
| Jul 28, 2011 Reel 26665, frame 310 | NXP B.V. | Knowles Electronics Asia Pte. Ltd. | Assignment of Assignor's Interest |
| Feb 5, 2015 Reel 34911, frame 664 | Knowles Electronics Asia Pte. Ltd. | Knowles Ipc (M) SDN BHD | Assignment of Assignor's Interest |
| Mar 7, 2016 Reel 38017, frame 58 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Security Agreement Supplement |
| Jul 14, 2016 Reel 39361, frame 212 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12092129 Previously Recorded on Reel 038017 Frame 0058. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Aug 17, 2016 Reel 39707, frame 471 | Morgan Stanley Senior Funding, Inc. | NXP B.V. | Patent Release |
| Sep 9, 2016 Reel 39977, frame 85 | Knowles Ipc (M) SDN. BHD. | Knowles Electronics (Beijing) Co., Ltd. | Assignment of Assignor's Interest |
| Sep 14, 2016 Reel 40028, frame 643 | Knowles Electronics (Beijing) Co., Ltd. | Sound Solutions International Co., Ltd. | Change of Name |
| May 9, 2017 Reel 42762, frame 145 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12681366 Previously Recorded on Reel 039361 Frame 0212. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| May 9, 2017 Reel 42985, frame 1 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12681366 Previously Recorded on Reel 038017 Frame 0058. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Sep 10, 2019 Reel 50745, frame 1 | Morgan Stanley Senior Funding, Inc. | NXP B.V. | Release of Security Interest |
| Oct 22, 2019 Reel 51029, frame 1 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12298143 Previously Recorded on Reel 042985 Frame 0001. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Oct 22, 2019 Reel 51029, frame 387 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12298143 Previously Recorded on Reel 039361 Frame 0212. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Oct 22, 2019 Reel 51030, frame 1 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12298143 Previously Recorded on Reel 038017 Frame 0058. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Oct 22, 2019 Reel 51145, frame 184 | NXP B.V. | Morgan Stanley Senior Funding, Inc. | Corrective Assignment to Correct the Remove Application 12298143 Previously Recorded on Reel 042762 Frame 0145. Assignor(S) Hereby Confirms the Security Agreement Supplement. |
| Nov 28, 2019 Reel 51144, frame 466 | Sound Solutions International Co., Ltd. | Ssi New Material (Zhenjiang) Co., Ltd. | 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 2029
Term ends Mar 22, 2029. No further fees fall due before then
Note
The 523 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
20
later US patents cite this one
That is above the median of utility patents granted in 2012 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.