Also listed on Velcon Filters, LLC, an earlier holder on the record. The recorded assignments below show how it moved.
Term ends Jun 29, 2027 · High confidence
20-year base term ends Jan 25, 2027
Held by Parker-Hannifin Corporation
Filed Jan 25, 2007 as application 11/627,105 · Granted Apr 14, 2009
Base term plus 155 days of patent term adjustment (USPTO delay)
Today
2007
2027
Clock starts
Jan 25, 2007
Jan 25, 2007
Term ends
Jun 29, 2027
Jun 29, 2027
Granted
Apr 14, 2009
Apr 14, 2009
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
155
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 155 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 Jan 25, 2007, when this application, 11/627,105, was filed | Jan 25, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +155 days, USPTO patent term adjustment record | Jun 29, 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 | High confidence |
| Computed term end | The steps above, in order | Jun 29, 2027 | High confidence |
This family
| Application 60/762,831 | Provisional application no patent term | no patent term |
| US 7,518,719 | this patent Jun 2027 | Jun 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 |
|---|---|---|---|
| Apr 5, 2007 Reel 19123, frame 242 | Sprenger, Greg; Stevens, Jed; White, Michael; Hillis, Richard; Lavenberg, Jacob; Templeman, Chris | Velcon Filters, Inc.; Physical Sciences, Inc. | Assignment of Assignor's Interest |
| Apr 5, 2007 reel/frame not recorded | Sprenger, Greg; Stevens, Jed; Hillis, Richard; Lavenberg, Jacob; Templeman, Chris; White, Michael | Velcon Filters, Inc. | Assignment of Assignor's Interest |
| Apr 5, 2007 reel/frame not recorded | Sprenger, Greg; Stevens, Jed; Hillis, Richard; Lavenberg, Jacob; Templeman, Chris; White, Michael | Physical Sciences, Inc. | Assignment of Assignor's Interest |
| Apr 30, 2009 Reel 22619, frame 158 | Velcon Filters, Inc. | Velcon Filters, LLC | Assignment of Assignor's Interest |
| May 4, 2009 Reel 22629, frame 728 | Velcon Filters, LLC | BNP Paribas | Security Agreement |
| Apr 12, 2011 Reel 26112, frame 366 | Velcon Filters, LLC | BNP Paribas, as Administrative Agent for and Representative of the Beneficiaries | Grant of Patent Security Interest |
| Jul 10, 2012 Reel 28541, frame 395 | Velcon Filters, LLC | Bnp Paribas, As Administrative Agent | Grant of Patent Security Interest |
| Nov 13, 2012 Reel 29291, frame 683 | BNP Paribas | Velcon Filters, LLC | Termination and Release of Security Interest in Patents |
| Oct 25, 2018 Reel 47309, frame 805 | Velcon Filters, LLC | Parker-Hannifin Corporation | Merger |
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
Jun 2027
Term ends Jun 29, 2027. No further fees fall due before then
Note
The 155 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
16
later US patents cite this one
That is above the median of utility patents granted in 2009 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.