Five patents currently held, every record listed here
1 more in force is now held by another company
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
The next term ends in Jun 2034. from the record
Free plan: 3 watched companies. Pro: unlimited.
Alerts on its grants, lapses and transfers.
0
Ending by 2030
Jun 2034
Next term end
5
Patent families
When these terms end
Each bar runs from grant to computed term end. 2014 to 2043.
US 12,076,730
Method for Producing Carbon Material Dispersion, Carbon Material Dispersion, and Apparatus Therefor
Sep 22, 2041
US 12,485,103
Insulin Secretion-Promoting Agent and Blood Sugar Level Improver Using Same, Diabetes Improver, and Food
Feb 1, 2043
20202026203220382043
11 pending applications: 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
Notable
Ends Jun 2034 · High confidence
Also notable
Ends Apr 2037 · High confidence
Also notable
Ends Mar 2043 · High confidence
Hollow Fiber Cartridges and Components and Methods of Their Construction
US 10,213,745
The most cited patent in this portfolio, cited by 29 later US patents, top 10% of utility patents granted in 2019 in our data. Protection runs to 2034.
Aluminum Cabinet
US 10,215,209
The earliest of the three still in force, granted 2019 and renewed since. Its term ends first, in 2037.
Liquid-Liquid Extraction Device
US 12,654,114
Granted 2026. Too new for citation comparison; protection runs to 2043.
Formerly held, still cited
Notable
Ends Jan 2032 · High confidence
Cited by 22 later US patents, top 25% of utility patents granted in 2014 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2032.
now held by Essilor International
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.
What they patent
The 4 largest of its 5 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
| Liquid-Liquid Extraction Device | 1 in force | to Mar 2043 |
| Insulin Secretion-Promoting Agent and Blood Sugar Level Improver Using Same, Diabetes Improver, and Food | 1 in force | to Feb 2043 |
| Method for Producing Carbon Material Dispersion, Carbon Material Dispersion, and Apparatus Therefor | 1 in force | to Sep 2041 |
| Hollow Fiber Cartridges and Components and Methods of Their Construction | 1 in force | to Jun 2034 |
Patents held now
Soonest term end first.
Showing 1 to 5 of 5
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 10,213,745 | Hollow Fiber Cartridges and Components and Methods of Their Construction held by Refine Technology, LLC In force · High confidence | In force | High confidence | |
| US 10,215,209 | Aluminum Cabinet held by Refine Scientific Co., Ltd. In force · High confidence | In force | High confidence | |
| US 12,076,730 | Method for Producing Carbon Material Dispersion, Carbon Material Dispersion, and Apparatus Therefor In force · High confidence | In force | High confidence | |
| US 12,485,103 | Insulin Secretion-Promoting Agent and Blood Sugar Level Improver Using Same, Diabetes Improver, and Food In force · High confidence | In force | High confidence | |
| US 12,654,114 | Liquid-Liquid Extraction Device In force · High confidence | In force | High confidence |
Also on record, not counted in the 5: 1 patent in force now held by others · 9 patents ended · 11 applications pending · 12 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.