Collateral for a security interest recorded May 27, 2022 (BMO Harris Bank, N.A.).
Term ended Oct 5, 2026 · Medium confidence
20-year base term ended Apr 27, 2026
Why Medium: A parent in the chain could not be resolved.
Filed Oct 8, 2008 as application 12/067,009 · Granted Oct 25, 2016
Base term plus 364 days of patent term adjustment (USPTO delay) · capped by a resolved terminal disclaimer
Today
Term ended Oct 5, 2026
2006
2026
Clock starts
Apr 27, 2006
Apr 27, 2006
Term ended
Oct 5, 2026
Oct 5, 2026
Granted
Oct 25, 2016
Oct 25, 2016
base term
patent term adjustment
after the term ends
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
364
Days of term adjustment
Read from the USPTO patent term adjustment record, not recalculated here.
Capped
Terminal disclaimer
Resolved from the filed document, referencing US 8,329,236.
2 of 2
Maintenance fees paid
Two maintenance fees can end this term early, the ones due 3.5 and 7.5 years from grant; the third one's grace period runs past the term end. 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 364 days past its 20-year base term on prosecution delay. A terminal disclaimer resolved from the filed document caps it earlier. 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 Apr 27, 2006, when application 11/380,522, the earliest non-provisional in its chain, was filed (this one was filed Oct 8, 2008); a parent in its chain could not be resolved (the next row) | Apr 27, 2026 | 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 | +364 days, USPTO patent term adjustment record | Apr 26, 2027 | High confidence |
| Terminal disclaimer cap | Disclaimer resolved from the filed document (refs US 8,329,236) | capped to Oct 5, 2026 | High confidence |
| Patent term extension | None on file | no change | High confidence |
| Fee events | 2 of 2 maintenance fees paid | term ended | High confidence |
| Computed term end | The steps above, in order | Oct 5, 2026 | Medium confidence |
This family
| Application PCT/US2006/034325 | PCT application no patent term | no patent term |
| US 9,474,297 | this patent Oct 2026 | Oct 2026 |
| US 9,629,384 | In force Aug 2027 | Aug 2027 |
| Application PCT/US2014/034405 | PCT application no patent term | no patent term |
| Application 15/332,983 | Abandoned not computed | not computed |
5 of 6 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 |
|---|---|---|---|
| May 6, 2011 Reel 26237, frame 57 | Chigurupati, Sambasiva Rao | S & P Ingredient Development, LLC | Assignment of Assignor's Interest |
| Jun 1, 2011 Reel 26372, frame 673 | Chigurupati, Sambasiva Rao; Manuel, Thomas L.; Fahey, Michael G. | S & P Ingredient Development, LLC | Assignment of Assignor's Interest |
| Jun 23, 2011 Reel 26499, frame 140 | Chigurupati, Sambasiva Rao | Chigurupati, Sambasiva Rao; Manuel, Thomas L.; Fahey, Michael G. | Corrective Assignment to Correct the Assignee from S & P Ingredient Development, LLC to Sambasiva Rao Chigurupati, Thomas L. Manuel and Michael G. Fahey Previously Recorded on Reel 026237 Frame 0057. Assignor(S) Hereby Confirms the Assignment of All Assignor's Right, Title and Interest. |
| Jun 23, 2011 reel/frame not recorded | Chigurupati, Sambasiva Rao | Chigurupati, Sambasiva Rao | Corrective Assignment to Correct the Assignee from S & P Ingredient Development, LLC to Sambasiva Rao Chigurupati, Thomas L. Manuel and Michael G. Fahey Previously Recorded on Reel 026237 Frame 0057. Assignor(S) Hereby Confirms the Assignment of All Assignor's Right, Title and Interest. |
| Jun 23, 2011 reel/frame not recorded | Chigurupati, Sambasiva Rao | Manuel, Thomas L. | Corrective Assignment to Correct the Assignee from S & P Ingredient Development, LLC to Sambasiva Rao Chigurupati, Thomas L. Manuel and Michael G. Fahey Previously Recorded on Reel 026237 Frame 0057. Assignor(S) Hereby Confirms the Assignment of All Assignor's Right, Title and Interest. |
| Jun 23, 2011 reel/frame not recorded | Chigurupati, Sambasiva Rao | Fahey, Michael G. | Corrective Assignment to Correct the Assignee from S & P Ingredient Development, LLC to Sambasiva Rao Chigurupati, Thomas L. Manuel and Michael G. Fahey Previously Recorded on Reel 026237 Frame 0057. Assignor(S) Hereby Confirms the Assignment of All Assignor's Right, Title and Interest. |
| Mar 17, 2016 Reel 38135, frame 942 | S & P Ingredient Development, LLC | Comerica Bank | Security Interest |
| Apr 30, 2021 Reel 56096, frame 81 | S & P Ingredient Development, LLC | Proterra Finance LLC, as Collateral Agent | Security Interest |
| May 4, 2021 Reel 56129, frame 794 | Comerica Bank | S & P Ingredient Development, LLC | Release of Security Interest |
| May 27, 2022 Reel 60204, frame 584 | S & P Ingredient Development, LLC | BMO Harris Bank, N.A., as Administrative Agent | Security Agreement |
| Jun 2, 2022 Reel 60088, frame 345 | Proterra Finance LLC, as Collateral Agent | S & P Ingredient Development, 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
Note
The 364 days of patent term adjustment (USPTO delay) are read from the USPTO record, not recalculated by us
Disclaimer cap
This term is capped by a terminal disclaimer resolved from the filed document, referencing US 8,329,236.
Citations
10
later US patents cite this one
That is above the median 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.