Term ends Dec 12, 2031 · High confidence
20-year base term ends Sep 16, 2031
Held by Baxalta GmbH and Baxalta Incorporated
Filed Jun 20, 2014 as application 14/311,112 · Granted Jan 2, 2018
Base term plus 425 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
2011
2031
Clock starts
Sep 16, 2011
Sep 16, 2011
Term ends
Dec 12, 2031
Dec 12, 2031
Granted
Jan 2, 2018
Jan 2, 2018
base term
patent term adjustment
fee events
Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
425
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,795,658.
2 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.
3
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 425 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 2 of 3 maintenance fees are paid so far. 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 Sep 16, 2011, when application 13/235,314, the earliest non-provisional in its chain, was filed (this one was filed Jun 20, 2014) | Sep 16, 2031 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +425 days, USPTO patent term adjustment record | Nov 14, 2032 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,795,658) | capped to Dec 12, 2031 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Dec 12, 2031 | High confidence |
This family
| US 8,795,658 | In force Dec 2031 | Dec 2031 |
| US 9,855,331 | this patent Dec 2031 | Dec 2031 |
| Application 15/859,108 | Abandoned not computed | not computed |
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 |
|---|---|---|---|
| Jul 21, 2014 Reel 33356, frame 812 | Butterweck, Harald Arno; Koelbl, Bernhard; Hofbauer, Lucia; Teschner, Wolfgang; Schwarz, Hans-peter | Baxter International Inc.; Baxter Healthcare S.A. | Assignment of Assignor's Interest |
| Jul 21, 2014 reel/frame not recorded | Butterweck, Harald Arno; Hofbauer, Lucia; Koelbl, Bernhard; Teschner, Wolfgang; Schwarz, Hans-peter | Baxter International Inc. | Assignment of Assignor's Interest |
| Jul 21, 2014 reel/frame not recorded | Butterweck, Harald Arno; Hofbauer, Lucia; Koelbl, Bernhard; Teschner, Wolfgang; Schwarz, Hans-peter | Baxter Healthcare S.A. | Assignment of Assignor's Interest |
| Aug 17, 2015 Reel 36367, frame 1 | Baxter International Inc. | Baxalta GmbH; Baxalta Incorporated | Assignment of Assignor's Interest |
| Aug 17, 2015 Reel 36367, frame 357 | Baxter Healthcare S.A. | Baxalta GmbH; Baxalta Incorporated | Assignment of Assignor's Interest |
| Aug 17, 2015 reel/frame not recorded | Baxter International Inc. | Baxalta GmbH | Assignment of Assignor's Interest |
| Aug 17, 2015 reel/frame not recorded | Baxter International Inc. | Baxalta Incorporated | Assignment of Assignor's Interest |
| Aug 17, 2015 reel/frame not recorded | Baxter Healthcare S.A. | Baxalta GmbH | Assignment of Assignor's Interest |
| Aug 17, 2015 reel/frame not recorded | Baxter Healthcare S.A. | Baxalta Incorporated | Assignment of Assignor's 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
Dec 2031
Term ends Dec 12, 2031. Maintenance fees still fall due before then
Note
The 425 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,795,658.
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2018 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.