Sunam Co., Ltd.
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.
5
Ending by 2030
Feb 2028
Next term end
When these terms end
Held patents by the year their term ends
20262027202820292030203120322033203420352036203720382039204020412042204320442045
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 May 26, 2027The maintenance fee for Equipment for manufacturing ceramic wires (US 10,487,014) comes due May 26, 2027. Unpaid by Nov 26, 2027, it lapses early.
Recent changes
Nothing was recorded against this company's patents in the last 90 days.
Patents held now
Soonest term end first. Each date below is computed on that patent's own page, which shows the rule, the adjustments and the fee history it was derived from.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,035,933 | Structure of persistent current switch and that of control method In force · From the USPTO record | In force | From the USPTO record | |
| US 7,920,977 | Noncontact measurement method of currents on superconductive wires connected in parallel In force · From the USPTO record | In force | From the USPTO record | |
| US 8,178,473 | Superconductive magnet for persistent current and method for manufacturing the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,043,429 | Method for fabricating filament type high-temperature superconducting wire In force · From the USPTO record | In force | From the USPTO record | |
| US 8,236,733 | Method of forming a precursor solution for metal organic deposition and method of forming superconducting thick film using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 9,362,477 | Method of forming ceramic wire, system of forming the same, and superconductor wire using the same In force · From the USPTO record | In force | From the USPTO record | |
| US 8,685,166 | Apparatus for Continuous Fabricating Superconducting Tapes In force · High confidence | In force | High confidence | |
| US 9,484,129 | Manufacturing method of superconducting wire and superconducting wire made thereby In force · From the USPTO record | In force | From the USPTO record | |
| US 10,262,776 | Superconductor and Method of Manufacturing Same In force · High confidence | In force | High confidence | |
| US 9,634,223 | Superconductor, Superconducting Wire, and Method of Forming the Superconductor In force · High confidence | In force | High confidence |
Also on record, not counted in the 11: 1 patent in force now held by others · 1 lapsed for an unpaid fee · 1 ended at full term. List them
Sources and methods
Compiled from the USPTO record, grants, published applications and recorded assignments, not yet reviewed by hand.
How this record was built
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
Published applications
US patent applications published under this name that have not become patents. An application is published about eighteen months after its earliest filing; one that has not been published is in no public record.
1 pending · 1 abandoned · 2 no status recorded