JNTG Co., Ltd.
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Nov 2035
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 Apr 24, 2027The maintenance fee for Gas diffusion layer comprising microporous layer including carbon having partially graphitized structure and radical scavenger additive, and fuel cell employing the same (US 11,799,090) comes due Apr 24, 2027. Unpaid by Oct 25, 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.
Showing 1 to 6 of 6
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 9,692,070 | Carbon substrate for gas diffusion layer, gas diffusion layer using the same, and electrode for fuel cell, membrane-electrode assembly and fuel cell comprising the gas diffusion layer In force · From the USPTO record | In force | From the USPTO record | |
| US 9,799,890 | Multi-layered carbon substrate for gas diffusion layer In force · From the USPTO record | In force | From the USPTO record | |
| US 12,034,187 | Carbon Substrate Comprising Carbon Fibers Unidirectionally Aligned, and Gas Diffusion Layer Employing Same In force · High confidence | In force | High confidence | |
| US 12,034,188 | Graphitized carbon substrate and gas diffusion layer employing same In force · From the USPTO record | In force | From the USPTO record | |
| US 11,799,090 | Gas diffusion layer comprising microporous layer including carbon having partially graphitized structure and radical scavenger additive, and fuel cell employing the same In force · From the USPTO record | In force | From the USPTO record | |
| US 12,040,516 | Gas diffusion layer including microporous layer having through passages and/or concentration gradient of water-repellent resin in thickness direction, and fuel cell including the same In force · From the USPTO record | In force | From the USPTO record |
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
Every application published under this name has become a patent.