The Patent Finder

Moxtek, Inc.

125 patents currently held · Updated Nov 14, 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.
3
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.
  • 1 fee due Nov 28, 2026
    The maintenance fee for Embedded wire grid polarizer with high reflectivity on both sides (US 10,302,832) comes due Nov 28, 2026. Unpaid by May 28, 2027, it lapses early.
  • 3 fees due Dec 20 to 30, 2026 · next Dec 20
  • 1 fee due Jan 7, 2027
    The maintenance fee for Variable Radius Taper X-Ray Window Support Structure (US 9,076,628) comes due Jan 7, 2027. Unpaid by Jul 7, 2027, it lapses early.
  • 3 fees due Feb 1 to 15, 2027 · next Feb 1
  • 4 fees due Mar 5 to 19, 2027 · next Mar 5
  • 3 fees due Apr 15 to 29, 2027 · next Apr 15
  • 2 fees due May 14 to 21, 2027 · next May 14
  • 2 fees due Jun 3 to 19, 2027 · next Jun 3
  • 3 fees due Jul 2 to 19, 2027 · next Jul 2
  • 1 fee due Aug 25, 2027
    The maintenance fee for Wire grid polarizer heat sink having specified reflective layer, absorptive layer, and heat-dissipation layer (US 10,571,614) comes due Aug 25, 2027. Unpaid by Feb 25, 2028, it lapses early.
  • 1 fee due Sep 24, 2027
    The maintenance fee for High voltage power supply casing (US 10,602,600) comes due Sep 24, 2027. Unpaid by Mar 24, 2028, it lapses early.
  • 6 fees due Oct 5 to 28, 2027 · next Oct 5
  • 2 fees due Nov 5 to 12, 2027 · next Nov 5

Which patents, and when each one lapses · Pro

Recent changes

  • 1 of the patents on this record was granted since Aug 16, 2026
  • 3 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.
PatentTitleStatus Expires Confidence
US 7,961,393Selectively absorptive wire-grid polarizer
In force
 · From the USPTO record
In forceFrom the USPTO record
US 7,529,345Cathode header optic for x-ray tube
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,058,674Alternate 4-terminal JFET geometry to reduce gate to source capacitance
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,305,735Reinforced Polymer X-Ray Window
In force
 · Medium confidence
In forceMedium confidence
US 8,964,943Polymer Layer on X-Ray Window
In force
 · Medium confidence
In forceMedium confidence
US 8,498,381Polymer layer on X-ray window
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,929,515Multiple-size support for X-ray window
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,076,628Variable Radius Taper X-Ray Window Support Structure
In force
 · High confidence
In forceHigh confidence
US 8,922,890Polarizer Edge Rib Modification
In force
 · High confidence
In forceHigh confidence
US 9,072,155Transformer network
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 125 patents shown.
Pro members see all 125.
Pro members: see all 125 patents
Also on record, not counted in the 125: 1 patent in force now held by others · 80 lapsed for an unpaid fee · 38 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.

4 pending · 6 abandoned · 20 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