Also listed on Sinmat, Inc., an earlier holder on the record. The recorded assignments below show how it moved.
Collateral for a security interest recorded Jul 8, 2022 (Truist Bank).
Term ends Sep 14, 2030 · High confidence
20-year base term ends Apr 13, 2029
Held by Entegris, Inc.
Filed Apr 13, 2009 as application 12/422,771 · Granted Jun 14, 2016
Base term plus 519 days of patent term adjustment (USPTO delay)
Today
2009
2030
Clock starts
Apr 13, 2009
Apr 13, 2009
Term ends
Sep 14, 2030
Sep 14, 2030
Granted
Jun 14, 2016
Jun 14, 2016
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
519
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.
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 519 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 Apr 13, 2009, when this application, 12/422,771, was filed | Apr 13, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +519 days, USPTO patent term adjustment record | Sep 14, 2030 | 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 | Sep 14, 2030 | High confidence |
This family
| US 9,368,367 | this patent Sep 2030 | Sep 2030 |
| Application PCT/US2010/030898 | PCT application no patent term | no patent term |
| US 8,557,133 | In force Apr 2029 | Apr 2029 |
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 |
|---|---|---|---|
| Apr 13, 2009 Reel 22539, frame 434 | Chakkaravarthi Arjunan, Arul; Das, Dibakar; Singh, Deepika; Mishra, Abhudaya; Jayaraman, Tanjore V. | Sinmat, Inc. | Assignment of Assignor's Interest |
| Aug 30, 2010 Reel 24904, frame 385 | Singh, Rajiv K. | University of Florida Research Foundation, Inc. | Assignment of Assignor's Interest |
| Apr 14, 2020 Reel 52388, frame 520 | Sinmat, Inc. | Entegris, Inc. | Assignment of Assignor's Interest |
| Jul 8, 2022 Reel 60613, frame 72 | Entegris, Inc.; Entegris GP, Inc.; Poco Graphite, Inc.; CMC Materials, Inc.; International Test Solutions, LLC; Qed Technologies International, Inc. | Truist Bank, as Notes Collateral Agent | Security Interest |
| Jul 8, 2022 Reel 60614, frame 980 | Entegris, Inc.; Entegris GP, Inc.; Poco Graphite, Inc. | Morgan Stanley Senior Funding, Inc., as Collateral Agent | 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
Sep 2030
Term ends Sep 14, 2030. Maintenance fees still fall due before then
Note
The 519 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
21
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.