Term ends Jun 19, 2032 · Medium confidence
20-year base term ends Feb 17, 2029
Why Medium: A parent in the chain could not be resolved.
Held by UOP LLC
Filed Jun 2, 2010 as application 12/792,136 · Granted Apr 10, 2018
Base term plus 1218 days of patent term adjustment (USPTO delay)
Today
2009
2032
Clock starts
Feb 17, 2009
Feb 17, 2009
Term ends
Jun 19, 2032
Jun 19, 2032
Granted
Apr 10, 2018
Apr 10, 2018
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
1,218
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.
23
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 1218 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 Feb 17, 2009, when application 12/372,604, the earliest non-provisional in its chain, was filed (this one was filed Jun 2, 2010); a parent in its chain could not be resolved (the next row) | Feb 17, 2029 | 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 | +1218 days, USPTO patent term adjustment record | Jun 19, 2032 | 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 | Jun 19, 2032 | Medium confidence |
This family
| US 9,021,831 | In force Jul 2032 | Jul 2032 |
| Application PCT/US2010/021364 | PCT application no patent term | no patent term |
| US 9,080,811 | In force Mar 2032 | Mar 2032 |
| Application PCT/US2010/026185 | PCT application no patent term | no patent term |
| US 8,881,549 | In force Apr 2032 | Apr 2032 |
| Application PCT/US2010/029331 | PCT application no patent term | no patent term |
| US 9,933,207 | In force Jun 2032 | Jun 2032 |
| Application PCT/US2010/033374 | PCT application no patent term | no patent term |
8 of 23 applications in this family shown, earliest filings first. 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 |
|---|---|---|---|
| Sep 10, 2010 Reel 24969, frame 370 | Cuellar, Kyle T.; Wilkinson, John D.; Lynch, Joe T.; Hudson, Hank M.; Johnke, Andrew F.; Lewis, W. Larry | Ortloff Engineers, Ltd. | Assignment of Assignor's Interest |
| Feb 15, 2011 Reel 25792, frame 144 | Cuellar, Kyle T.; Wilkinson, John D.; Lynch, Joe T.; Hudson, Hank M.; Johnke, Andrew F.; Lewis, W. Larry | Ortloff Engineers, Ltd.; S.M.E. Products LP | Corrective Assignment to Correct the Omitted a Receiving Party Previously Recorded on Reel 024969 Frame 0370. Assignor(S) Hereby Confirms the Assignment. |
| Feb 15, 2011 reel/frame not recorded | Hudson, Hank M.; Lynch, Joe T.; Wilkinson, John D.; Cuellar, Kyle T.; Johnke, Andrew F.; Lewis, W. Larry | Ortloff Engineers, Ltd. | Corrective Assignment to Correct the Omitted a Receiving Party Previously Recorded on Reel 024969 Frame 0370. Assignor(S) Hereby Confirms the Assignment. |
| Feb 15, 2011 reel/frame not recorded | Hudson, Hank M.; Lynch, Joe T.; Wilkinson, John D.; Cuellar, Kyle T.; Johnke, Andrew F.; Lewis, W. Larry | S.M.E. Products LP | Corrective Assignment to Correct the Omitted a Receiving Party Previously Recorded on Reel 024969 Frame 0370. Assignor(S) Hereby Confirms the Assignment. |
| Sep 24, 2020 Reel 54188, frame 807 | Ortloff Engineers, Ltd. | UOP LLC | 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.
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Alerts on its grants, lapses and transfers.
What's changing
Jun 2032
Term ends Jun 19, 2032. Maintenance fees still fall due before then
Note
The 1218 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
35
later US patents cite this one
That is top 10% 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.