Term ended Oct 30, 2026 · High confidence
20-year base term ended Mar 16, 2026
Held by Brooks Instrument, LLC
Filed Mar 16, 2006 as application 11/377,911 · Granted Aug 12, 2008
Base term plus 228 days of patent term adjustment (USPTO delay)
Today
Term ended Oct 30, 2026
2006
2026
Clock starts
Mar 16, 2006
Mar 16, 2006
Term ended
Oct 30, 2026
Oct 30, 2026
Granted
Aug 12, 2008
Aug 12, 2008
base term
patent term adjustment
after the term ends
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
228
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 228 days past its 20-year base term on prosecution delay. All three maintenance fees were paid, so no fee lapse ended it. 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 Mar 16, 2006, when this application, 11/377,911, was filed | Mar 16, 2026 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +228 days, USPTO patent term adjustment record | Oct 30, 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 | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 30, 2026 | High confidence |
This family
| US 7,409,871 | this patent Oct 2026 | Oct 2026 |
| Application PCT/US2007/006712 | PCT application no patent term | no patent term |
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 |
|---|---|---|---|
| Jun 29, 2006 Reel 17874, frame 771 | Wang, Chiun; Redemann, Eric J. | Celerity, Inc. | Assignment of Assignor's Interest |
| Apr 16, 2008 Reel 20808, frame 538 | Celerity, Inc.; Celerity Holding Company, Inc.; Celerity Systems, Inc. | The Bank of New York | Security Agreement |
| May 27, 2008 Reel 20995, frame 403 | Celerity, Inc. | Obsidian, LLC | Security Agreement |
| Jun 5, 2008 Reel 21050, frame 279 | Celerity, Inc. | Obsidian, LLC | Security Agreement |
| Jun 17, 2009 Reel 22878, frame 786 | Brooks Instruments LLC | Gmac Commercial Finance LLC | Security Interest |
| Jun 18, 2009 Reel 22835, frame 730 | Celerity, Inc. | Brooks Instrument, LLC | Assignment of Assignor's Interest |
| Jun 19, 2009 Reel 22846, frame 605 | Obsidian, LLC; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; SPCP Group, LLC; New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund, LP; United Insurance Company of America; Trinity Universal Insurance Company | Celerity, Inc.; Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 Reel 22846, frame 624 | Tennenbaum Capital Partners, LLC | Celerity, Inc.; Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 Reel 22846, frame 642 | Obsidian, LLC; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Spcp Group, L.l.c.; New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund LP; United Insurance Company of America; Trinity Universal Insurance Company | Celerity, Inc.; Celerity Holding Company, Inc.; Celerity Systems, Inc. | Release of Security Interest |
| Jun 19, 2009 Reel 22846, frame 663 | The Bank of New York Mellon; Tpg Partners Iii, L.p.; Tpg Investors Iii, L.p.; TPG Dutch Paralell III, C.V.; Fof Partners Iii, L.p.; Fof Partners Iii-b, L.p.; T3 Genpar II, L.P.; T3 Parallel II, L.P.; Tpg Partners Iv, L.p.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP | Celerity, Inc.; Celerity Holding Company, Inc.; Celerity Systems, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund, LP; Obsidian, LLC; SPCP Group, LLC; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Trinity Universal Insurance Company; United Insurance Company of America | Celerity, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund, LP; Obsidian, LLC; SPCP Group, LLC; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Trinity Universal Insurance Company; United Insurance Company of America | Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | Tennenbaum Capital Partners, LLC | Celerity, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | Tennenbaum Capital Partners, LLC | Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund LP; Obsidian, LLC; Spcp Group, L.l.c.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Trinity Universal Insurance Company; United Insurance Company of America | Celerity, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund LP; Obsidian, LLC; Spcp Group, L.l.c.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Trinity Universal Insurance Company; United Insurance Company of America | Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | New York Life Investment Management Mezzanine Partners, LP; Nylim Mezzanine Partners Parallel Fund LP; Obsidian, LLC; Spcp Group, L.l.c.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; Trinity Universal Insurance Company; United Insurance Company of America | Celerity Systems, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | Fof Partners Iii, L.p.; Fof Partners Iii-b, L.p.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; T3 Genpar II, L.P.; T3 Parallel II, L.P.; The Bank of New York Mellon; TPG Dutch Paralell III, C.V.; Tpg Investors Iii, L.p.; Tpg Partners Iii, L.p.; Tpg Partners Iv, L.p. | Celerity, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | Fof Partners Iii, L.p.; Fof Partners Iii-b, L.p.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; T3 Genpar II, L.P.; T3 Parallel II, L.P.; The Bank of New York Mellon; TPG Dutch Paralell III, C.V.; Tpg Investors Iii, L.p.; Tpg Partners Iii, L.p.; Tpg Partners Iv, L.p. | Celerity Holding Company, Inc. | Release of Security Interest |
| Jun 19, 2009 reel/frame not recorded | Fof Partners Iii, L.p.; Fof Partners Iii-b, L.p.; Special Value Absolute Return Fund, LLC; Special Value Continuation Partners, LP; T3 Genpar II, L.P.; T3 Parallel II, L.P.; The Bank of New York Mellon; TPG Dutch Paralell III, C.V.; Tpg Investors Iii, L.p.; Tpg Partners Iii, L.p.; Tpg Partners Iv, L.p. | Celerity Systems, Inc. | Release of Security Interest |
| Jan 11, 2012 Reel 27514, frame 691 | Ally Commercial Finance LLC (F/K/A Gmac Commercial Finance LLC) | Brooks Instrument, LLC | 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.
What's changing
Note
The 228 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 25% of utility patents granted in 2008 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.