Collateral for a security interest recorded Jan 26, 2016 (Highbridge Principal Strategies, LLC).
Term ends Oct 6, 2031 · High confidence
20-year base term ends Jul 14, 2028
Held by Ipc Systems, Inc.
Filed Jul 14, 2008 as application 12/172,545 · Granted Oct 29, 2013
Base term plus 1179 days of patent term adjustment (USPTO delay)
Today
2008
2031
Clock starts
Jul 14, 2008
Jul 14, 2008
Term ends
Oct 6, 2031
Oct 6, 2031
Granted
Oct 29, 2013
Oct 29, 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
1,179
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 1179 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 Jul 14, 2008, when this application, 12/172,545, was filed | Jul 14, 2028 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1179 days, USPTO patent term adjustment record | Oct 6, 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Oct 6, 2031 | 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 |
|---|---|---|---|
| Jul 14, 2008 Reel 21234, frame 69 | Bakshi, Aseem; Elliott, Daniel R.; Jain, Rajnish; Potts, Timothy; Koutikas, Elias | Ipc Systems, Inc. | Assignment of Assignor's Interest |
| Nov 4, 2013 Reel 31579, frame 426 | Ipc Systems, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement |
| Nov 5, 2013 Reel 31581, frame 681 | Ipc Systems, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Agreement |
| May 22, 2014 Reel 33004, frame 563 | Goldman Sachs Credit Partners L.P. | Ipc Systems, Inc. | Release of Security Interest in Patents-Second Lien |
| May 22, 2014 Reel 33004, frame 722 | Jpmorgan Chase Bank, N.a. | Ipc Systems, Inc. | Release of Security Interest in Patents-First Lien |
| May 22, 2014 Reel 33004, frame 802 | Ipc Systems, Inc. | JPMorgan Chase Bank, N.A., as Collateral Agent | First Lien Patent Security Agreement |
| May 22, 2014 Reel 33004, frame 842 | Ipc Systems, Inc. | Goldman Sachs Bank USA, as Collateral Agent | Second Lien Patent Security Agreement |
| Feb 9, 2015 Reel 34916, frame 883 | Jpmorgan Chase Bank, N.a. | Ipc Systems, Inc. | Release of Security Interest |
| Feb 9, 2015 Reel 34916, frame 927 | Goldman Sachs Bank USA | Ipc Systems, Inc. | Release of Security Interest |
| Feb 10, 2015 Reel 34933, frame 927 | Ipc Systems, Inc. | Barclays Bank PLC, as Collateral Agent | First Lien Security Agreement |
| Feb 11, 2015 Reel 34954, frame 604 | Ipc Systems, Inc. | Barclays Bank PLC, as Collateral Agent | Second Lien Security Agreement |
| Jan 26, 2016 Reel 37595, frame 135 | Ipc Systems, Inc. | Highbridge Principal Strategies, LLC | First Lien Patent Security Agreement |
| Apr 26, 2018 Reel 46022, frame 281 | Ipc Systems, Inc. | Midcap Financial Trust, As Collateral Agent | First Lien Patent Security Agreement |
| Apr 30, 2018 Reel 45665, frame 78 | HPS Investment Partners, LLC (F/K/A Highbridge Principal Strategies, LLC), as Collateral Agent | Ipc Systems, Inc. | Release of Security Interest |
| Jul 20, 2020 Reel 53258, frame 776 | Barclays Bank PLC as the Existing Agent | Cortland Capital Market Services LLC as Successor Agent | Security Interest Assignment |
| Oct 4, 2021 Reel 57691, frame 813 | Barclays Bank PLC | Ipc Systems, Inc. | Release of Security Interest |
| Oct 4, 2021 Reel 57693, frame 276 | Midcap Financial Trust | Ipc Systems, Inc. | Release of Security Interest |
| Oct 4, 2021 Reel 57693, frame 660 | Cortland Capital Market Services LLC | Ipc Systems Inc. | Release of Security Interest |
| Oct 22, 2021 Reel 57884, frame 381 | Ipc Systems, Inc. | HPS Investment Partners, LLC | Security Interest |
| Mar 11, 2026 Reel 75090, frame 164 | Ipc Systems, Inc. | HPS Investment Partners, LLC, as Collateral Agent | First Lien Security Interest |
| Oct 27, 2026 Reel 76521, frame 140 | Ipc Systems, Inc. | TCW Asset Management Company LLC, as Agent | Security Interest |
| Oct 30, 2026 Reel 76579, frame 182 | HPS Investment Partners, LLC, as Collateral Agent | Ipc Systems, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Oct 2031
Term ends Oct 6, 2031. No further fees fall due before then
Note
The 1179 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
17
later US patents cite this one
That is above the median 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.