The Patent Finder

Radian Memory Systems, Inc.

96 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.

0
Ending by 2030
Feb 2033
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 Dec 13 to 20, 2026 · next Dec 13
  • 2 fees due Jan 18 to 25, 2027 · next Jan 18
  • 1 fee due Feb 28, 2027
    The maintenance fee for Cooperative Flash Management of Storage Device Subdivisions (US 11,740,801) comes due Feb 28, 2027. Unpaid by Aug 30, 2027, it lapses early.
  • 2 fees due Mar 5 to 19, 2027 · next Mar 5
  • 1 fee due Apr 15, 2027
    The maintenance fee for Memory Controller with at Least One Address Segment Defined for Which Data Is Striped Across Flash Memory Dies, with a Common Address Offset Being Used to Obtain Physical Addresses for the Data in Each of the Dies (US 10,445,229) comes due Apr 15, 2027. Unpaid by Oct 15, 2027, it lapses early.
  • 2 fees due Jul 5 to 9, 2027 · next Jul 5
  • 6 fees due Aug 4 to 27, 2027 · next Aug 4
  • 1 fee due Oct 30, 2027
    The maintenance fee for Techniques for Managing Writes in Nonvolatile Memory (US 11,972,153) comes due Oct 30, 2027. Unpaid by May 1, 2028, it lapses early.
  • 2 fees due Nov 5, 2027

Which patents, and when each one lapses · Pro

Recent changes

  • 2 of the patents on this record were granted 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 9,519,578Multi-Array Operation Support and Related Devices, Systems and Software
In force
 · High confidence
In forceHigh confidence
US 9,542,118Expositive Flash Memory Control
In force
 · High confidence
In forceHigh confidence
US 9,710,377Multi-Array Operation Support and Related Devices, Systems and Software
In force
 · High confidence
In forceHigh confidence
US 9,727,454Memory Controller That Provides Addresses to Host for Memory Location Matching State Tracked by Memory Controller
In force
 · High confidence
In forceHigh confidence
US 9,785,572Memory Controller with Multimodal Control Over Memory Dies
In force
 · High confidence
In forceHigh confidence
US 10,445,229Memory Controller with at Least One Address Segment Defined for Which Data Is Striped Across Flash Memory Dies, with a Common Address Offset Being Used to Obtain Physical Addresses for the Data in Each of the Dies
In force
 · High confidence
In forceHigh confidence
US 10,552,085Techniques for directed data migration
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,642,748Memory Controller for Flash Memory with Zones Configured on Die Boundaries and with Separate Spare Management per Zone
In force
 · High confidence
In forceHigh confidence
US 10,884,915Flash memory controller to perform delegated move to host-specified destination
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,956,082Techniques for directed data migration
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 96 patents shown.
Pro members see all 96.
Pro members: see all 96 patents

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

Every application published under this name has become a patent.

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