Also listed on Generac Holdings Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jul 11, 2024 (JPMorgan Chase Bank, N.A.).
Term ends Dec 8, 2026 · High confidence
20-year base term ended Nov 3, 2026
Held by Generac Power Systems, Inc.
Filed Nov 3, 2006 as application 11/556,496 · Granted Jun 16, 2009
Base term plus 35 days of patent term adjustment (USPTO delay)
Today
2006
2026
Clock starts
Nov 3, 2006
Nov 3, 2006
Term ends
Dec 8, 2026
Dec 8, 2026
Granted
Jun 16, 2009
Jun 16, 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
35
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.
7
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 35 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 Nov 3, 2006, when this application, 11/556,496, was filed | Nov 3, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +35 days, USPTO patent term adjustment record | Dec 8, 2026 | 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 | Dec 8, 2026 | High confidence |
This family
| US 7,548,826 | this patent Dec 2026 | Dec 2026 |
| US 8,359,248 | In force Mar 2030 | Mar 2030 |
| US 7,974,809 | In force May 2027 | May 2027 |
| Application 13/691,374 | Abandoned not computed | not computed |
| Application 13/691,370 | Abandoned not computed | not computed |
| US 9,709,636 | In force Sep 2029 | Sep 2029 |
| US 9,791,520 | In force Apr 2029 | Apr 2029 |
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 |
|---|---|---|---|
| Nov 3, 2006 Reel 18479, frame 790 | Witter, Bradley Jay; Butler, Thomas Joseph; Kubiak, Edward Stanley | Tria Solutions LLC | Assignment of Assignor's Interest |
| Dec 30, 2008 Reel 22038, frame 322 | Tria Solutions, LLC | Blue Pillar, Inc. | Assignment of Assignor's Interest |
| Jun 13, 2014 Reel 33157, frame 163 | Blue Pillar, Inc. | Bridge Bank, National Association | Security Interest |
| Jul 1, 2016 Reel 39063, frame 743 | Blue Pillar, Inc. | Silicon Valley Bank | Security Interest |
| Feb 16, 2017 Reel 41741, frame 157 | Silicon Valley Bank | Blue Pillar, Inc. | Release of Security Interest |
| Jul 3, 2017 Reel 42883, frame 620 | Blue Pillar, Inc. | Pivotal Capital Fund, LP | Security Interest |
| Jul 17, 2017 Reel 43021, frame 641 | Western Alliance Bank | Blue Pillar, Inc. | Release of Security Interest |
| Nov 20, 2019 Reel 51063, frame 104 | Bpac, Inc. | Bpac, Inc. | Release of Security Interest |
| Nov 20, 2019 Reel 51064, frame 227 | Blue Pillar, Inc. | Bpac, Inc. | Voluntary Surrender of Collateral |
| Nov 20, 2019 Reel 51065, frame 514 | Pivotal Capital Fund, LP | Bpac, Inc. | Assignment and Assumption Agreement |
| Jul 18, 2023 Reel 64299, frame 58 | Bpac, Inc. | Generac Power Systems, Inc. | Merger |
| Jul 11, 2024 Reel 68283, frame 215 | Generac Power Systems, Inc. | JPMorgan Chase Bank, N.A., as Administrative Agent | After-Acquired Intellectual Property Security Agreement (Third Supplemental Filing) |
| Jan 13, 2025 Reel 70569, frame 152 | Pivotal Capital Fund, LP | Bpac, Inc. | Corrective Assignment to Correct the Receiving Party Data Previously Recorded at Reel: 51065 Frame: 514. Assignor(S) Hereby Confirms the Assignment. |
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
Dec 2026
Term ends Dec 8, 2026. No further fees fall due before then
Note
The 35 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
30
later US patents cite this one
That is top 25% 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.