Term ends Dec 11, 2026 · High confidence
20-year base term ended Feb 14, 2024
Held by Bioarray Solutions Ltd.
Filed Feb 14, 2004 as application 10/778,520 · Granted Oct 20, 2009
Base term plus 1031 days of patent term adjustment (USPTO delay)
Today
2004
2026
Clock starts
Feb 14, 2004
Feb 14, 2004
Term ends
Dec 11, 2026
Dec 11, 2026
Granted
Oct 20, 2009
Oct 20, 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
1,031
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.
This patent's term runs 1031 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 Feb 14, 2004, when this application, 10/778,520, was filed | Feb 14, 2024 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +1031 days, USPTO patent term adjustment record | Dec 11, 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 11, 2026 | High confidence |
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 |
|---|---|---|---|
| Dec 7, 2010 Reel 25464, frame 343 | Zhang, Yi; Seul, Michael | Bioarray Solutions Ltd. | Assignment of Assignor's Interest |
| Aug 19, 2011 Reel 26778, frame 640 | Immucor, Inc.; Bioarray Solutions Ltd. | Citibank, N.A., as Administrative Agent | Patent Security Agreement |
| Jul 2, 2020 Reel 53119, frame 135 | Immucor, Inc.; Bioarray Solutions Ltd.; Sirona Genomics, Inc.; Immucor Gti Diagnostics Inc. | HPS Investment Partners, LLC, as Administrative Agent | Security Interest |
| Jul 2, 2020 Reel 53119, frame 152 | Immucor, Inc.; Bioarray Solutions Ltd.; Sirona Genomics, Inc.; Immucor Gti Diagnostics Inc. | Alter Domus (US) LLC, as Administrative Agent | Security Interest |
| Jul 2, 2020 reel/frame not recorded | Citibank, N.a. | Immucor, Inc. | Release of Patent Security Interests |
| Jul 2, 2020 reel/frame not recorded | Citibank, N.a. | Bioarray Solutions Ltd. | Release of Patent Security Interests |
| Jul 2, 2020 reel/frame not recorded | Citibank, N.a. | Immucor Gti Diagnostics, Inc. | Release of Patent Security Interests |
| Jul 2, 2020 reel/frame not recorded | Citibank, N.a. | Sirona Genonics, Inc. | Release of Patent Security Interests |
| Jul 2, 2020 Reel 53121, frame 935 | Citibank, N.a. | Immucor, Inc.; Bioarray Solutions Ltd.; Immucor Gti Diagnostics, Inc.; Sirona Genonics, Inc. | Release of Patent Security Interests |
| Mar 15, 2023 Reel 63090, frame 33 | HPS Investment Partners, LLC, as Administrative Agent | Immucor, Inc.; Bioarray Solutions Ltd.; Sirona Genomics, Inc.; Immucor Gti Diagnostics, Inc. | Release of Security Interest |
| Mar 15, 2023 Reel 63090, frame 111 | Alter Domus (US) LLC, as Collateral Agent | Immucor, Inc.; Bioarray Solutions Ltd.; Sirona Genomics, Inc.; Immucor Gti Diagnostics, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | HPS Investment Partners, LLC, as Administrative Agent | Immucor, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | HPS Investment Partners, LLC, as Administrative Agent | Bioarray Solutions Ltd. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | HPS Investment Partners, LLC, as Administrative Agent | Sirona Genomics, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | HPS Investment Partners, LLC, as Administrative Agent | Immucor Gti Diagnostics, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | Alter Domus (US) LLC, as Collateral Agent | Immucor, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | Alter Domus (US) LLC, as Collateral Agent | Bioarray Solutions Ltd. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | Alter Domus (US) LLC, as Collateral Agent | Sirona Genomics, Inc. | Release of Security Interest |
| Mar 15, 2023 reel/frame not recorded | Alter Domus (US) LLC, as Collateral Agent | Immucor Gti Diagnostics, Inc. | 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
Dec 2026
Term ends Dec 11, 2026. No further fees fall due before then
Note
The 1031 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
96
later US patents cite this one
That is top 10% 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.