Kingfa Sci. & Tech. 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.
Recorded under 2 name spellings.
0
Ending by 2030
Dec 2031
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 Dec 9, 2026The maintenance fee for Heat-resistant polyamide composition and application thereof (US 9,051,454) comes due Dec 9, 2026. Unpaid by Jun 9, 2027, it lapses early.
- 1 fee due Feb 20, 2027The maintenance fee for Biodegradable polyester composition (US 10,385,204) comes due Feb 20, 2027. Unpaid by Aug 20, 2027, it lapses early.
- 2 fees due Mar 3 to 26, 2027 · next Mar 3
- 1 fee due Apr 8, 2027The maintenance fee for Biodegradable polyester composition (US 10,435,556) comes due Apr 8, 2027. Unpaid by Oct 8, 2027, it lapses early.
- 2 fees due May 12 to 19, 2027 · next May 12
- 1 fee due Jun 3, 2027The maintenance fee for Biodegradable polyester composition (US 10,494,521) comes due Jun 3, 2027. Unpaid by Dec 3, 2027, it lapses early.
- 1 fee due Aug 4, 2027The maintenance fee for PBAT resin composition (US 10,550,222) comes due Aug 4, 2027. Unpaid by Feb 4, 2028, it lapses early.
- 1 fee due Sep 12, 2027The maintenance fee for Flame-retardant HIPS material and preparation method thereof (US 11,926,725) comes due Sep 12, 2027. Unpaid by Mar 13, 2028, it lapses early.
- 1 fee due Oct 28, 2027The maintenance fee for Composition of PBAT resin (US 10,633,514) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, 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 9,051,454 | Heat-resistant polyamide composition and application thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 10,800,915 | Polycarbonate composition and preparation method thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 10,633,514 | Composition of PBAT resin In force · From the USPTO record | In force | From the USPTO record | |
| US 10,696,841 | Polycarbonate composition and preparation method thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 10,703,901 | Glass fiber-reinforced flame retardant PBT composition and preparation method thereof In force · From the USPTO record | In force | From the USPTO record | |
| US 10,550,222 | PBAT resin composition In force · From the USPTO record | In force | From the USPTO record | |
| US 10,385,204 | Biodegradable polyester composition In force · From the USPTO record | In force | From the USPTO record | |
| US 10,400,100 | Biodegradable polyester composition In force · From the USPTO record | In force | From the USPTO record | |
| US 10,472,515 | Biodegradable polyester composition In force · From the USPTO record | In force | From the USPTO record | |
| US 10,479,887 | Biodegradable polyester composition In force · From the USPTO record | In force | From the USPTO record |
Also on record, not counted in the 36: 1 patent in force now held by others · 2 lapsed for an unpaid fee. 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.
16 pending · 21 no status recorded