Term ends Aug 26, 2033 · High confidence
20-year base term ends May 24, 2033
Held by Versum Materials US, LLC
Filed Oct 10, 2014 as application 14/511,719 · Granted Apr 18, 2017
Base term plus 94 days of patent term adjustment (USPTO delay)
Today
2013
2033
Clock starts
May 24, 2013
May 24, 2013
Term ends
Aug 26, 2033
Aug 26, 2033
Granted
Apr 18, 2017
Apr 18, 2017
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
94
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
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.
6
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 94 days past its 20-year base term on prosecution delay. 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 May 24, 2013, when application 13/902,300, the earliest non-provisional in its chain, was filed (this one was filed Oct 10, 2014) | May 24, 2033 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +94 days, USPTO patent term adjustment record | Aug 26, 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 | 2 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Aug 26, 2033 | High confidence |
This family
| US 9,337,018 | In force Jan 2034 | Jan 2034 |
| US 9,627,193 | this patent Aug 2033 | Aug 2033 |
| US 9,613,799 | In force May 2033 | May 2033 |
| US 9,997,350 | In force May 2033 | May 2033 |
| US 10,077,364 | In force Jun 2033 | Jun 2033 |
| US 10,283,350 | In force May 2033 | May 2033 |
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 31, 2014 Reel 34082, frame 45 | Mayorga, Steven Gerard; Bowen, Heather Regina; Lei, Xinjian; Xiao, Manchao; Chandra, Haripin; Mallikarjunan, Anupama; Pearlstein, Ronald Martin | Air Products and Chemicals, Inc. | Assignment of Assignor's Interest |
| Oct 27, 2016 Reel 40503, frame 442 | Versum Materials US, LLC | Citibank, N.A., as Collateral Agent | Patent Security Agreement |
| Feb 20, 2017 Reel 41772, frame 733 | Air Products and Chemicals, Inc. | Versum Materials US, LLC | Assignment of Assignor's Interest |
| Oct 7, 2019 Reel 50647, frame 1 | Citibank, N.A., as Agent | Versum Materials US, 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.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
What's changing
Aug 2033
Term ends Aug 26, 2033. Maintenance fees still fall due before then
Note
The 94 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
8
later US patents cite this one
That is above the median of utility patents granted in 2017 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.