The Patent Finder

Qnap Systems, Inc.

47 patents currently held · Updated Nov 15, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 2 name spellings.

1
Ending by 2030
Dec 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 Jan 30, 2027
    The maintenance fee for Automated tiering system and automated tiering method (US 10,365,831) comes due Jan 30, 2027. Unpaid by Jul 30, 2027, it lapses early.
  • 2 fees due Mar 12 to 17, 2027 · next Mar 12
  • 2 fees due Apr 6 to 30, 2027 · next Apr 6
  • 1 fee due May 14, 2027
    The maintenance fee for Authorized access list generation method and information security system using same (US 11,818,132) comes due May 14, 2027. Unpaid by Nov 15, 2027, it lapses early.
  • 1 fee due Jul 16, 2027
    The maintenance fee for File versioning management method and file system (US 11,874,806) comes due Jul 16, 2027. Unpaid by Jan 18, 2028, it lapses early.
  • 2 fees due Oct 2 to 16, 2027 · next Oct 2

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 7,640,452Method for reconstructing data in case of two disk drives of RAID failure and system therefor
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,639,026Background model learning system for lighting change adaptation utilized for video surveillance
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,599,255Video surveillance system based on Gaussian mixture modeling with two-type learning rate control scheme
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,152,855Enhanced object detection method using image discontinuousness
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,959,903Video playback method
In force
 · From the USPTO record
In forceFrom the USPTO record
US D919,612Network storage device
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,805,272Storage system of original frame of monitor data and storage method thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,178,172Electronic apparatus and method for expanding storage capacity of electronic apparatus
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,055,140Method, system, and computer-readable recording medium for automated storage tiering
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,176,585Method and electronic apparatus for image background learning
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 47 patents shown.
Pro members see all 47.
Pro members: see all 47 patents
Also on record, not counted in the 47: 26 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.

3 pending · 20 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