16 patents currently held
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Mar 2032. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Mar 2032
Next term end
9
Patent families
When these terms end
Held patents by the year their term ends
notable patents
fee due within 90 days
all others
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
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.
Notable patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Ends Mar 2032 · High confidence
Also notable
Ends Aug 2035 · High confidence
Also notable
Ends Jun 2036 · High confidence
Dry Grind Ethanol Production Process and System with Front End Milling Method
US 9,012,191
The most cited patent in this portfolio, cited by 98 later US patents, top 5% of utility patents granted in 2015 in our data. Protection runs to 2032.
Yeast Stage Tank Incorporated Fermentation System and Method
US 11,427,839
Cited by 6 later US patents, top 25% of utility patents granted in 2022 in our data. Protection runs to 2035.
Method of Making Animal Feeds from Whole Stillage
US 11,166,478
Cited by 13 later US patents, top 25% of utility patents granted in 2021 in our data. Protection runs to 2036.
Fee deadlines
Maintenance fees fall due 3.5, 7.5 and 11.5 years after grant. A missed fee ends a patent at the end of the six month grace period that follows, not on the due date.
- 1 fee due Dec 20, 2026The maintenance fee for Yeast Stage Tank Incorporated Fermentation System and Method (US 11,680,278) comes due Dec 20, 2026. Unpaid by Jun 21, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
What they patent
The 5 largest of its 9 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Patents held now
Soonest term end first.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,012,191 | Dry Grind Ethanol Production Process and System with Front End Milling Method In force · High confidence | In force | High confidence | |
| US 9,689,003 | Dry Grind Ethanol Production Process and System with Front End Milling Method In force · Medium confidence | In force | Medium confidence | |
| US 9,695,381 | Two Stage High Speed Centrifuges in Series Used to Recover Oil and Protein from a Whole Stillage in a Dry Mill Process In force · High confidence | In force | High confidence | |
| US 9,352,326 | Grind Mill for Dry Mill Industry In force · High confidence | In force | High confidence | |
| US 9,388,475 | Method of and System for Producing Oil and Valuable Byproducts from Grains in Dry Milling Systems with a Back-End Dewater Milling Unit In force · High confidence | In force | High confidence | |
| US 11,427,839 | Yeast Stage Tank Incorporated Fermentation System and Method In force · High confidence | In force | High confidence | |
| US 11,680,278 | Yeast Stage Tank Incorporated Fermentation System and Method In force · High confidence | In force | High confidence | |
| US 12,084,707 | Yeast Stage Tank Incorporated Fermentation System and Method In force · High confidence | In force | High confidence | |
| US 12,351,852 | Yeast Stage Tank Incorporated Fermentation System and Method In force · High confidence | In force | High confidence | |
| US 12,655,453 | Yeast Stage Tank Incorporated Fermentation System and Method In force · High confidence | In force | High confidence |
Also on record, not counted in the 16: 1 patent ended · 3 applications pending · 6 applications abandoned. List them
Sources and methods
Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.