Collateral for a security interest recorded Feb 9, 2023 (HCR Collateral Management, LLC).
Term ends Jan 4, 2027 · High confidence
20-year base term ends Jan 4, 2027
Held by Liquidia Technologies, Inc.
Filed Dec 17, 2014 as application 14/572,895 · Granted Apr 19, 2016
Base term, 20 years from filing
Today
2007
2027
Clock starts
Jan 4, 2007
Jan 4, 2007
Term ends
Jan 4, 2027
Jan 4, 2027
Granted
Apr 19, 2016
Apr 19, 2016
base term
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
None
Term adjustment
No prosecution delay on this record.
No effect
Terminal disclaimer
Resolved from the filed document, referencing US 8,944,804, to Jan 4, 2027. The term already ends on or before that date, so the cap shortened nothing.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 is its 20-year base term, with no adjustment for prosecution delay. A terminal disclaimer is resolved from the filed document, and it ends no earlier than this term, so it shortens nothing. 2 of 2 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 Jan 4, 2007, when application PCT/US2007/000402, the earliest non-provisional in its chain, was filed (this one was filed Dec 17, 2014) | Jan 4, 2027 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | None on file | no change | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,944,804) | resolves to Jan 4, 2027, no earlier than this term, so no change | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Jan 4, 2027 | High confidence |
This family
| Application PCT/US2007/000402 | PCT application no patent term | no patent term |
| US 8,944,804 | In force May 2029 | May 2029 |
| US 9,314,548 | this patent Jan 2027 | Jan 2027 |
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 |
|---|---|---|---|
| Jan 3, 2018 Reel 44521, frame 547 | Robeson, Lloyd Mahlon | Air Products and Chemicals, Inc. | Assignment of Assignor's Interest |
| Jan 3, 2018 Reel 44521, frame 650 | Air Products and Chemicals, Inc. | Liquidia Technologies, Inc. | Assignment of Assignor's Interest |
| Jan 3, 2018 Reel 44521, frame 775 | Rothrock, Ginger D. | Liquidia Technologies, Inc. | Assignment of Assignor's Interest |
| Feb 9, 2023 Reel 62643, frame 791 | Liquidia Technologies, Inc. | HCR Collateral Management, LLC | Security Interest |
| May 11, 2023 Reel 63627, frame 307 | HCR Collateral Management, LLC, as Retiring Subordinated Lender | Healthcare Royalty Partners IV, L.P., as Successor Subordinated Lender | Assignment of IP Security Agreement Recorded at Reel/Frame 062643/0791 |
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
Jan 2027
Term ends Jan 4, 2027. No further fees fall due before then
Terminal disclaimer
A terminal disclaimer resolved from the filed document, referencing US 8,944,804, ends no earlier than this term, so it caps nothing.
Citations
14
later US patents cite this one
That is top 25% of utility patents granted in 2016 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.