The Patent Finder

Silex Microsystems AB

29 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

16
Ending by 2030
Dec 2026
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 Jun 29, 2027
    The maintenance fee for CTE matched interposer and method of making (US 9,224,681) comes due Jun 29, 2027. Unpaid by Dec 29, 2027, it lapses early.
  • 1 fee due Jul 19, 2027
    The maintenance fee for Semiconductor devices with close-packed via structures having in-plane routing and method of making same (US 9,240,373) comes due Jul 19, 2027. Unpaid by Jan 19, 2028, it lapses early.
  • 1 fee due Aug 2, 2027
    The maintenance fee for Starting substrate for semiconductor engineering having substrate-through connections and a method for making same (US 9,249,009) comes due Aug 2, 2027. Unpaid by Feb 2, 2028, it lapses early.
  • 1 fee due Oct 12, 2027
    The maintenance fee for Methods for making a starting substrate wafer for semiconductor engineering having wafer through connections (US 9,312,217) comes due Oct 12, 2027. Unpaid by Apr 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

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.
PatentTitleStatus Expires Confidence
US 8,637,351Methods for making micro needles and applications thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,598,676Barrier Structure
In force
 · High confidence
In forceHigh confidence
US 8,871,641Low resistance through-wafer via
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,324,103Vias and method of making
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,308,960Methods for making micro needles and applications thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,312,217Methods for making a starting substrate wafer for semiconductor engineering having wafer through connections
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,338,957Low resistance through-wafer via
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,742,588Method for making via interconnection
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,620,390Method of making a semiconductor device having a functional capping
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,630,033Via structure and method thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 29 patents shown.
Pro members see all 29.
Pro members: see all 29 patents
Also on record, not counted in the 29: 8 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.

2 abandoned · 2 no status recorded

List them

The Patent Finder CompaniesExpirationsCalculatorWatchlistPricing MethodologyCorrectionsLegalPrivacysupport@thepatentfinder.com Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) Part of 137 Finder · © 2026 137 Finder LLC · Sources cited