Term ends Apr 10, 2033 · High confidence
20-year base term ended May 9, 2025
Held by Bloom Energy Corporation
Filed May 9, 2005 as application 11/124,810 · Granted Apr 8, 2014
Base term plus 2893 days of patent term adjustment (USPTO delay)
Today
2005
2033
Clock starts
May 9, 2005
May 9, 2005
Term ends
Apr 10, 2033
Apr 10, 2033
Granted
Apr 8, 2014
Apr 8, 2014
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
2,893
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 2893 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 May 9, 2005, when this application, 11/124,810, was filed | May 9, 2025 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +2893 days, USPTO patent term adjustment record | Apr 10, 2033 | 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 | Apr 10, 2033 | High confidence |
This family
| US 8,691,462 | this patent Apr 2033 | Apr 2033 |
| US 9,413,017 | Term ended no later than Aug 2025 | no later than Aug 2025 |
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 |
|---|---|---|---|
| Oct 4, 2007 Reel 19923, frame 187 | Bandhauer, Todd M.; Reinke, Michael J.; Valensa, Jeroen | Modine Manufacturing Company | Assignment of Assignor's Interest |
| Nov 20, 2008 Reel 21872, frame 864 | Modine Manufacturing Company | Bloom Energy Corporation | License |
| Oct 9, 2015 Reel 36767, frame 484 | Modine Manufacturing Company | Bloom Energy Corporation | Assignment of Assignor's Interest |
| Dec 15, 2015 Reel 37301, frame 93 | Bloom Energy Corporation | U.S. Bank National Association, as Collateral Agent | Security Interest |
| Nov 15, 2016 Reel 40619, frame 799 | Modine Manufacturing Company | JPMorgan Chase Bank, N.A., as Collateral Agent | Security Interest |
| Nov 29, 2018 Reel 47686, frame 121 | U.S. Bank National Association, as Collateral Agent | Bloom Energy Corporation | Release of Security Interest |
| Feb 11, 2026 Reel 73763, frame 352 | Jpmorgan Chase Bank, N.a. | Bloom Energy Corporation | 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
Apr 2033
Term ends Apr 10, 2033. No further fees fall due before then
Note
The 2893 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
51
later US patents cite this one
That is top 10% of utility patents granted in 2014 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.