Solum Co., Ltd.
60 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.
11
Ending by 2030
Jun 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.
- 4 fees due Nov 14 to 28, 2026 · next Nov 14
- 1 fee due Dec 4, 2026The maintenance fee for Transformer and Power Supply Device Including the Same (US 10,312,012) comes due Dec 4, 2026. Unpaid by Jun 4, 2027, it lapses early.
- 1 fee due Jan 18, 2027The maintenance fee for Electronic Label Management Apparatus and Method (US 11,704,516) comes due Jan 18, 2027. Unpaid by Jul 19, 2027, it lapses early.
- 2 fees due Feb 18 to 20, 2027 · next Feb 18
- 2 fees due Apr 10 to 17, 2027 · next Apr 10
- 2 fees due May 5 to 21, 2027 · next May 5
- 2 fees due Jul 19 to 21, 2027 · next Jul 19
- 3 fees due Aug 9 to 16, 2027 · next Aug 9
- 1 fee due Sep 22, 2027The maintenance fee for Channel Searching Method and Apparatus for Receiving Broadcast Signal Using the Same (US 9,294,990) comes due Sep 22, 2027. Unpaid by Mar 22, 2028, it lapses early.
- 1 fee due Oct 9, 2027The maintenance fee for Electric appliance and adapter (US 11,955,755) comes due Oct 9, 2027. Unpaid by Apr 10, 2028, it lapses early.
- 1 fee due Nov 10, 2027The maintenance fee for Boost Converter with First and Second Modes Based Upon the Input Voltage (US 9,337,715) comes due Nov 10, 2027. Unpaid by May 10, 2028, it lapses early.
Recent changes
- 1 of the patents on this record was granted since Aug 16, 2026
- 2 terms have ended since Aug 16, 2026
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 7,965,164 | Multi-Output Transformer In force · High confidence | In force | High confidence | |
| US 7,742,319 | Transformer Having Resonant Inductance In force · High confidence | In force | High confidence | |
| US 7,915,757 | Multi-Output Dc/Dc Converter In force · High confidence | In force | High confidence | |
| US 8,025,507 | Connector In force · High confidence | In force | High confidence | |
| US 8,027,174 | Adapter Power Supply In force · High confidence | In force | High confidence | |
| US 8,058,959 | Transformer and Transformer Assembly In force · High confidence | In force | High confidence | |
| US 8,120,204 | Load Sharing Device and Parallel Power Supply Therewith In force · High confidence | In force | High confidence | |
| US 8,120,278 | LED Driving Circuit In force · High confidence | In force | High confidence | |
| US 9,255,878 | Measurement of Nitrate-Nitrogen Concentration in Soil based on Absorption Spectroscopy In force · High confidence | In force | High confidence | |
| US 8,953,339 | Power Module and Display Device In force · Medium confidence | In force | Medium confidence |
Also on record, not counted in the 81: 60 patents in force now held by others · 115 lapsed for an unpaid fee · 2 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.
3 pending · 7 abandoned · 4 no status recorded