The Patent Finder

Quantalrf AG

14 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
Mar 2034
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 11 to 25, 2026 · next Dec 11
  • 1 fee due Nov 7, 2027
    The maintenance fee for Amplifier including magnetically coupled feedback loop and stacked input and output stages adapted for DC current reuse (US 11,979,114) comes due Nov 7, 2027. Unpaid by May 8, 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 10,333,475Logarithmic detector amplifier system for use as high sensitivity selective receiver without frequency conversion
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,270,170Compound Loop Antenna System with Isolation Frequency Agility
In force
 · Medium confidence
In forceMedium confidence
US 10,320,078Small form factor CPL antenna with balanced fed dipole electric field radiator
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,052,004Radio frequency power amplifier system and method of linearizing an output signal thereof
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,278,599Differential amplifier including dual magnetically coupled feedback loops
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,149,216System and method for adjusting amplifier bias using envelope tracking
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,034,411Method of improving linearity of amplifier circuit including magnetically coupled feedback loop and DC bias current adjustment without impacting amplifier gain
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,979,114Amplifier including magnetically coupled feedback loop and stacked input and output stages adapted for DC current reuse
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,160,203Amplifier linearization using magnetically coupled feedback provided by a transformer coupled to a balun-based load
In force
 · From the USPTO record
In forceFrom the USPTO record
US 12,149,210Amplifier linearization using magnetically coupled feedback
In force
 · From the USPTO record
In forceFrom the USPTO record
10 of 14 patents shown.
Pro members see all 14.
Pro members: see all 14 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

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.

1 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