The Patent Finder

Shengyi Technology Co., Ltd.

43 patents currently held · Updated Nov 15, 2026
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.
2
Ending by 2030
Mar 2027
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.
  • 2 fees due Nov 16 to 30, 2026 · next Nov 16
  • 3 fees due Dec 4 to 23, 2026 · next Dec 4
  • 1 fee due Jan 2, 2027
    The maintenance fee for Organic silicon resin composition, white prepreg and white laminate using same (US 10,336,905) comes due Jan 2, 2027. Unpaid by Jul 2, 2027, it lapses early.
  • 2 fees due Feb 22 to 28, 2027 · next Feb 22
  • 1 fee due Mar 3, 2027
    The maintenance fee for Halogen-free epoxy resin composition, prepreg, laminate and printed circuit board containing the same (US 10,400,099) comes due Mar 3, 2027. Unpaid by Sep 3, 2027, it lapses early.
  • 3 fees due Jun 3 to 24, 2027 · next Jun 3
  • 2 fees due Sep 10 to 12, 2027 · next Sep 10
  • 2 fees due Oct 2 to 30, 2027 · next Oct 2
  • 2 fees due Nov 5 to 7, 2027 · next Nov 5

Which patents, and when each one lapses · Pro

Recent changes

  • 3 of the patents on this record were granted since Aug 17, 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.
PatentTitleStatus Expires Confidence
US 8,426,029Metallic Laminate and Method for Preparing the Same
In force
 · High confidence
In forceHigh confidence
US 8,221,842Metallic Laminate and Method for Preparing the Same
In force
 · High confidence
In forceHigh confidence
US 9,062,011Benzoxazine intermediate and preparation method thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,889,816Method for preparing phosphorus-containing polyphenylene oxide resin with low molecular weight
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,745,464Halogen-free flame retardant resin composition and the use thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,208,188Thermosetting Resin Composition and Uses Thereof
In force
 · High confidence
In forceHigh confidence
US 10,149,380Resin composition and its use
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,144,824Halogen free resin composition and prepreg and laminated board prepared therefrom
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,308,808Organic silicone resin composition and pre-preg, laminate, copper-clad laminate, and aluminum substrate that use the composition
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,336,905Organic silicon resin composition, white prepreg and white laminate using same
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 43 patents shown.
Pro members see all 43.
Pro members: see all 43 patents
Also on record, not counted in the 43: 1 patent in force now held by others · 33 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.

6 pending · 36 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 15, 2026 · includes USPTO assignment & status data published Nov 15, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited