Term ends Sep 10, 2029 · High confidence
20-year base term ends Apr 22, 2029
Held by Renessenz, LLC
Filed Apr 22, 2009 as application 12/386,712 · Granted Jun 14, 2011
Base term plus 141 days of patent term adjustment (USPTO delay)
Today
2009
2029
Clock starts
Apr 22, 2009
Apr 22, 2009
Term ends
Sep 10, 2029
Sep 10, 2029
Granted
Jun 14, 2011
Jun 14, 2011
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
141
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
None
Terminal disclaimer
No disclaimer on this record.
3 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.
2
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 141 days past its 20-year base term on prosecution delay. All three maintenance fees are recorded paid; no more fees are due. 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 22, 2009, when this application, 12/386,712, was filed | Apr 22, 2029 | High confidence |
| Continuity chain | Every parent in the chain resolved | no change | High confidence |
| Patent term adjustment | +141 days, USPTO patent term adjustment record | Sep 10, 2029 | 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 | 3 of 3 maintenance fees paid | In force | High confidence |
| Computed term end | The steps above, in order | Sep 10, 2029 | High confidence |
This family
| US 7,960,580 | this patent Sep 2029 | Sep 2029 |
| Application PCT/US2010/000982 | PCT application no patent term | no patent term |
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 22, 2009 Reel 22639, frame 731 | Erman, Mark B.; Snow, Joe W. | Millennium Specialty Chemicals, Inc. | Assignment of Assignor's Interest |
| May 6, 2010 Reel 24342, frame 135 | Lyondellbasell Flavors & Fragrances, LLC | Deutsche Bank Trust Company Americas, as Collateral Agent | Security Agreement |
| May 7, 2010 Reel 24351, frame 40 | Lyondellbasell Flavors & Fragrances, LLC | UBS AG, Stamford Branch, as Collateral Agent | Security Agreement |
| May 18, 2010 Reel 24397, frame 898 | Lyondellbasell Flavors & Fragrances, LLC | Citibank, N.A., as Administrative Agent | Security Agreement |
| May 19, 2010 Reel 24402, frame 727 | Lyondellbasell Flavors & Fragrances, LLC | Wells Fargo Bank, National Association, as Collateral Agent | Security Agreement |
| Dec 23, 2010 Reel 25562, frame 245 | Lyondellbasell Flavors & Fragrances, LLC | Wells Fargo Bank, National Association, as Administrative Agent | Security Agreement |
| Dec 23, 2010 Reel 25563, frame 397 | Deutsche Bank Trust Company Americas, as Collateral Agent | Lyondellbasell Flavors & Fragrances, LLC | Release of Security Interest |
| Dec 23, 2010 Reel 25563, frame 717 | Citibank, N.A., as Administrative Agent | Lyondellbasell Flavors & Fragrances, LLC | Release of Security Interest |
| Dec 23, 2010 Reel 25563, frame 777 | UBS AG, Stamford Branch, as Collateral Agent | Lyondellbasell Flavors & Fragrances, LLC | Release of Security Interest |
| Dec 23, 2010 Reel 25563, frame 798 | Wells Fargo Bank, National Association, as Collateral Agent | Lyondellbasell Flavors & Fragrances, LLC | Release of Security Interest |
| Jan 11, 2011 Reel 25619, frame 24 | Millennium Specialty Chemicals Inc. | Lyondellbasell Flavors & Fragrances, LLC | Assignment of Assignor's Interest |
| May 9, 2011 Reel 26246, frame 863 | Lyondellbasell Flavors & Fragrances, LLC | Renessenz, LLC | Change of Name |
| Feb 1, 2016 Reel 37631, frame 376 | Wells Fargo Bank, National Association | Pinova Holdings, Inc.; Renessenz LLC | Release of Security Interest |
| Feb 1, 2016 reel/frame not recorded | Wells Fargo Bank, National Association | Pinova Holdings, Inc. | Release of Security Interest |
| Feb 1, 2016 reel/frame not recorded | Wells Fargo Bank, National Association | Renessenz 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
Sep 2029
Term ends Sep 10, 2029. No further fees fall due before then
Note
The 141 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Citations
0
later US patents cite this one
That is below the median of utility patents granted in 2011 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.