0 patents currently held, every record listed here
7 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
This portfolio holds none of the 7 US patents in force on its record. from the record
Of the 7 now held by other companies, 7 name ST Equipment and Technology LLC as their current owner. Each row says so.
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
none
Next term end
When these terms end
Each bar runs from grant to computed term end. 2016 to 2042.
US 12,097,511
Process for Separation of Dry Food and Feed Materials Using a Tribo-Electrostatic Separator Device
Aug 29, 2040
US 11,998,930
Process for Dry Beneficiation of Fine and Very Fine Iron Ore by Size and Electrostatic Segregation
Jun 22, 2041
US 12,343,736
Process for Protein Enrichment of Dried Distillers Grains Using a Tribo-Electrostatic Separator Device
Jan 27, 2042
202120262031203620412042
1 pending application: term is not computable until grant.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 patents
Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
None of the currently held patents qualifies as notable.
Formerly held, still cited
Notable
Ends Aug 2034 · High confidence
Granted 2016 and renewed at every maintenance window due so far. Protection runs to 2034.
now held by ST Equipment & Technology LLC
Also notable
Ends Jul 2035 · High confidence
Granted 2017 and renewed at every maintenance window due so far. Protection runs to 2035.
now held by ST Equipment & Technology LLC
Also notable
Ends Jan 2042 · High confidence
Granted 2025. Too new for citation comparison; protection runs to 2042.
now held by ST Equipment & Technology LLC
Fee deadlines
No maintenance fee falls due on this company's record before Nov 10, 2027.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first.
Also on record: 7 patents in force now held by others · 3 patents ended · 1 application pending · 4 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.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.