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 Nov 4, 2030 · Medium confidence
20-year base term ends Mar 12, 2030
Why Medium: A parent in the chain could not be resolved.
Held by Entegris, Inc.
Filed Apr 29, 2013 as application 13/872,821 · Granted Dec 22, 2015
Base term plus 237 days of patent term adjustment (USPTO delay)
Today
2010
2030
Clock starts
Mar 12, 2010
Mar 12, 2010
Term ends
Nov 4, 2030
Nov 4, 2030
Granted
Dec 22, 2015
Dec 22, 2015
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
237
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 237 days past its 20-year base term on prosecution delay. 2 of 3 maintenance fees are paid so far. Confidence: Medium. 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 Mar 12, 2010, when application 12/723,309, the earliest non-provisional in its chain, was filed (this one was filed Apr 29, 2013); a parent in its chain could not be resolved (the next row) | Mar 12, 2030 | High confidence |
| Continuity chain | A parent in the chain could not be resolved | dated from this application's own claim | Medium confidence |
| Patent term adjustment | +237 days, USPTO patent term adjustment record | Nov 4, 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 | Nov 4, 2030 | Medium confidence |
This family
| Application 12/723,309 | Abandoned not computed | not computed |
| Application PCT/US2011/028144 | PCT application no patent term | no patent term |
| US 9,218,954 | this patent Nov 2030 | Nov 2030 |
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 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
Nov 2030
Term ends Nov 4, 2030. Maintenance fees still fall due before then
Note
The 237 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
6
later US patents cite this one
That is below the median of utility patents granted in 2015 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.