The Patent Finder

Freescale Semiconductor, Inc.

45 patents currently held · Updated Nov 14, 2026
3,410 more in force are now held by other companies
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.

Recorded under 52 name spellings.

23
Ending by 2030
Jan 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 Dec 11, 2026
    The maintenance fee for Laterally Diffused Metal Oxide Semiconductor Transistors for Radio Frequency Power Amplifiers (US 10,319,815) comes due Dec 11, 2026. Unpaid by Jun 11, 2027, it lapses early.
  • 1 fee due Oct 28, 2027
    The maintenance fee for RF Amplifier with Conductor-Less Region Underlying Filter Circuit Inductor, and Methods of Manufacture Thereof (US 10,637,400) comes due Oct 28, 2027. Unpaid by Apr 28, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 103 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 7,484,140Memory Having Variable Refresh Control and Method Therefor
In force
 · High confidence
In forceHigh confidence
US 7,490,266Integrated Circuit and Processing System with Improved Power Source Monitoring and Methods for Use Therewith
In force
 · High confidence
In forceHigh confidence
US 7,656,331System on a Chip with Multiple Independent Outputs
In force
 · High confidence
In forceHigh confidence
US 7,629,709Regulation of a DC to DC Converter
In force
 · High confidence
In forceHigh confidence
US 7,720,456Adjust Switching Rate of a Power Supply to Mitigate Interference
In force
 · High confidence
In forceHigh confidence
US 7,602,862Mixing Module and Methods for Use Therewith
In force
 · High confidence
In forceHigh confidence
US 7,596,351Audio System, Radio Record Module and Methods for Use Therewith
In force
 · High confidence
In forceHigh confidence
US 7,580,671Audio System, Radio Record Module and Methods for Use Therewith
In force
 · High confidence
In forceHigh confidence
US 7,940,132Clock System and Applications Thereof
In force
 · High confidence
In forceHigh confidence
US 10,095,567Micro Controller Unit Including an Error Indicator Module
In force
 · High confidence
In forceHigh confidence
10 of 45 patents shown.
Pro members see all 45.
Pro members: see all 45 patents
Also on record, not counted in the 45: 3,410 patents in force now held by others · 2,937 lapsed for an unpaid fee · 4,715 ended at full term · 13 past the fee grace period · 2 surrendered on reissue. 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.

432 abandoned

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