Also listed on Proserv Employing LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Dec 20, 2024 (PNC Bank, National Association).
Term ends Feb 20, 2027 · High confidence
20-year base term ended Aug 31, 2025
Held by Innovex International, Inc.
Filed May 1, 2009 as application 12/387,407 · Granted Oct 16, 2012
Base term plus 538 days of patent term adjustment (USPTO delay)
Today
2005
2027
Clock starts
Aug 31, 2005
Aug 31, 2005
Term ends
Feb 20, 2027
Feb 20, 2027
Granted
Oct 16, 2012
Oct 16, 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
538
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.
4
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 538 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 Aug 31, 2005, when application 11/216,227, the earliest non-provisional in its chain, was filed (this one was filed May 1, 2009) | Aug 31, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +538 days, USPTO patent term adjustment record | Feb 20, 2027 | 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 (reinstated) | High confidence |
| Computed term end | The steps above, in order | Feb 20, 2027 | High confidence |
This family
| US 7,419,001 | Term ended Aug 2025 | Aug 2025 |
| Application PCT/US2006/018304 | PCT application no patent term | no patent term |
| US 7,604,047 | Term ended Aug 2025 | Aug 2025 |
| US 8,286,713 | this patent Feb 2027 | Feb 2027 |
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 1, 2009 Reel 22676, frame 302 | Broussard, Earl | Argus Subsea, Inc. | Assignment of Assignor's Interest |
| Feb 2, 2010 Reel 23882, frame 153 | Argus Subsea Inc. | The Royal Bank of Scotland PLC | Amended and Restated Patent Security Agreement Supplement |
| Jul 5, 2011 Reel 26544, frame 827 | Azura Energy Systems Offshore, Inc. | Haymarket Financial LLP, as Security Agent | Security Agreement |
| Jul 11, 2011 Reel 26573, frame 888 | The Royal Bank of Scotland PLC | Argus Subsea Inc. | Release of Security Interest |
| Dec 20, 2012 Reel 29529, frame 937 | Proserv Operations LLC; Proserv Holdings Inc.; Proserv Offshore Inc.; Argus Subsea LLC; Gilmore Valve Company; Proserv International Holdings LLC; Proserv Offshore Holdings, Inc. | HSBC Corporate Trustee Company (UK) Limited | Patent Security Agreement Supplement Dated December 8, 2012 |
| Jan 8, 2013 Reel 29586, frame 764 | Haymarket Financial LLP, a Security Agent | Azura Energy Systems, Inc.; Gilmore Valve Company; Argus Subsea Inc. | Release of Security Interest |
| Jan 8, 2013 reel/frame not recorded | Haymarket Financial LLP, a Security Agent | Azura Energy Systems, Inc. | Release of Security Interest |
| Jan 8, 2013 reel/frame not recorded | Haymarket Financial LLP, a Security Agent | Gilmore Valve Company | Release of Security Interest |
| Jan 8, 2013 reel/frame not recorded | Haymarket Financial LLP, a Security Agent | Argus Subsea Inc. | Release of Security Interest |
| May 6, 2013 Reel 30353, frame 45 | Gilmore Valve Company; Argus Subsea LLC; Proserv Offshore LLC | Proserv Operations, Inc. | Merger |
| May 6, 2013 Reel 30353, frame 458 | Argus Subsea LLC; Gilmore Valve Company; Proserv Offshore, LLC | Proserv Offshore, Inc. | Merger |
| Jan 26, 2015 Reel 34810, frame 135 | HSBC Corporation Trustee Company (UK) Limited | Proserv Operations, LLC; Azura Energy Systems Offshore, Inc.; Gilmore Valve Company; Argus Subsea Inc. | Termination and Release of Security Interest in Patents |
| Jan 26, 2015 reel/frame not recorded | HSBC Corporation Trustee Company (UK) Limited | Proserv Operations, LLC | Termination and Release of Security Interest in Patents |
| Jan 26, 2015 reel/frame not recorded | HSBC Corporation Trustee Company (UK) Limited | Azura Energy Systems Offshore, Inc. | Termination and Release of Security Interest in Patents |
| Jan 26, 2015 reel/frame not recorded | HSBC Corporation Trustee Company (UK) Limited | Gilmore Valve Company | Termination and Release of Security Interest in Patents |
| Jan 26, 2015 reel/frame not recorded | HSBC Corporation Trustee Company (UK) Limited | Argus Subsea Inc. | Termination and Release of Security Interest in Patents |
| Jan 29, 2015 Reel 34839, frame 404 | HSBC Corporate Trustee Company (UK) Limited as Security Agent | Proserv Group Inc.; Azura Energy Systems Offshore Inc.; Gilmore Valve Company; Argus Subsea Inc. | Release of Security Interest |
| Jan 29, 2015 reel/frame not recorded | HSBC Corporate Trustee Company (UK) Limited as Security Agent | Proserv Group Inc. | Release of Security Interest |
| Jan 29, 2015 reel/frame not recorded | HSBC Corporate Trustee Company (UK) Limited as Security Agent | Azura Energy Systems Offshore Inc. | Release of Security Interest |
| Jan 29, 2015 reel/frame not recorded | HSBC Corporate Trustee Company (UK) Limited as Security Agent | Gilmore Valve Company | Release of Security Interest |
| Jan 29, 2015 reel/frame not recorded | HSBC Corporate Trustee Company (UK) Limited as Security Agent | Argus Subsea Inc. | Release of Security Interest |
| Mar 17, 2015 Reel 35182, frame 351 | Argus Subsea LLC; Proserv Offshore LLC; Proserv Operations, Inc. | Proserv Operations, Inc. | Merger and Change of Name |
| Mar 17, 2015 Reel 35184, frame 486 | Proserv Operations Inc.; Proserv Operations LLC | Proserv Operations LLC | Merger and Change of Name |
| Mar 17, 2015 Reel 35184, frame 706 | Proserv Employing LLC | Proserv Operations Inc. | Merger |
| Mar 17, 2015 Reel 35216, frame 28 | Argus Subsea Inc. | Argus Subsea LLC | Change of Name |
| Mar 17, 2015 Reel 35220, frame 509 | Proserv Operations LLC | Proserv Employing LLC | Change of Name |
| Apr 14, 2015 Reel 35404, frame 208 | Proserv Operations Inc.; Proserv UK Limited | HSBC Bank, National Association, as Collateral Agent | Security Interest |
| Apr 14, 2015 Reel 35404, frame 603 | Proserv Operations Inc. | UBS AG, Stamford Branch, as Collateral Agent | Security Interest |
| Mar 8, 2018 Reel 45538, frame 279 | HSBC Bank USA, National Association | Proserv Operations, Inc. | Termination and Release of Security Interest in Patent Collateral |
| Mar 20, 2018 Reel 45662, frame 200 | UBS AG, Stamford Branch | Riverstone V Acquisition Holdings Ltd. | Assignment of Patent Security Agreement |
| Mar 22, 2018 Reel 45663, frame 904 | Riverstone V Acquisition Holdings Ltd. | Proserv Operations, Inc. | Termination and Release of Security Interest in Patent Collateral |
| Dec 10, 2020 Reel 54606, frame 312 | Proserv Operations, LLC | Dril-Quip, Inc. | Assignment of Assignor's Interest |
| Oct 16, 2024 Reel 69175, frame 551 | Dril-Quip, Inc. | Innovex International, Inc. | Change of Name |
| Dec 20, 2024 Reel 69746, frame 780 | Innovex Downhole Solutions, LLC; Innovex International, Inc.; Tercel Oilfield Products USA L.L.C.; Top-Co. Inc. | Pnc Bank, National Association | Security Interest |
| Apr 1, 2025 Reel 70692, frame 509 | Innovex Downhole Solutions, LLC; Innovex International, Inc.; Tercel Oilfield Products USA L.L.C.; Downhole Well Solutions, LLC | Pnc Bank, National Association | 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.
What's changing
Feb 2027
Term ends Feb 20, 2027. No further fees fall due before then
Note
The 538 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
48
later US patents cite this one
That is top 25% 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.