The Patent Finder
PA

Pantech Corporation

Filings on record here from 2001, where this site's data begins
OverviewNotableFeesChangesFamiliesPatent listSources & methods

366 patents currently held

73 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.

The next term ends in Nov 2026. from the record

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Alerts on its grants, lapses and transfers.
148
Ending by 2030
Nov 2026
Next term end
204
Patent families

When these terms end

Held patents by the year their term ends
notable patents fee due within 90 days all others Updated Nov 14, 2026 · includes USPTO assignment & status data published Nov 14, 2026 and grant & fee data published Nov 10, 2026 (weekly) · how we know
Notable: the highest-ranked patents in this portfolio by citations and family size. Fee due within 90 days: a maintenance fee is due within 90 days of when this page was computed and not yet paid.

Notable patents

Ranked by citations and family size, against patents of the same kind granted the same year. How we rank
Notable
Apparatus and Method for Establishing Uplink Synchronization in a Wireless Communication System US 9,054,835
Cited by 149 later US patents, top 5% of utility patents granted in 2015 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Ends Oct 2031 · High confidence Also notable
Method for Mapping Physical Hybrid Automatic Repeat Request Indicator Channel US 7,894,330
Cited by 123 later US patents, top 5% of utility patents granted in 2011 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2029.
Ends Jun 2029 · High confidence Also notable
Apparatus and Method for Transmitting/Receiving Activation Indicator Regarding Component Carrier in Wireless Communication System US 8,538,411
Cited by 140 later US patents, top 5% of utility patents granted in 2013 in our data, and renewed at 3 of 3 maintenance windows. Protection runs to 2031.
Ends May 2031 · High confidence

Formerly held, still cited

Notable
Intra Prediction Mode Mapping Method and Device Using the Method US 9,554,130
Cited by 127 later US patents, top 5% of utility patents granted in 2017 in our data, and renewed at every maintenance window due so far. Protection runs to 2033.
now held by Dolby Laboratories Licensing Corporation
Ends Nov 2033 · High confidence

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 26, 2026
    The maintenance fee for Apparatus and Method for Reporting Radio Link Failure (US 9,042,881) comes due Nov 26, 2026. Unpaid by May 26, 2027, it lapses early.
  • 2 fees due Dec 18, 2026
  • 5 fees due Jan 11 to 23, 2027 · next Jan 11
  • 4 fees due Feb 4 to 27, 2027 · next Feb 4
  • 7 fees due Mar 1 to 29, 2027 · next Mar 1
  • 4 fees due Apr 6 to 29, 2027 · next Apr 6
  • 9 fees due May 3 to 24, 2027 · next May 3
  • 6 fees due Jun 1 to 26, 2027 · next Jun 1
  • 5 fees due Jul 7 to 30, 2027 · next Jul 7
  • 7 fees due Aug 4 to 23, 2027 · next Aug 4
  • 7 fees due Sep 3 to 30, 2027 · next Sep 3
  • 6 fees due Oct 12 to 26, 2027 · next Oct 12
  • 1 fee due Nov 12, 2027
    The maintenance fee for Method and Apparatus for Establishing and Signaling Maximum Transmission Power in Wireless Communication System (US 10,652,830) comes due Nov 12, 2027. Unpaid by May 12, 2028, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

What they patent

The 5 largest of its 204 families, grouped by real patent family and labeled by the earliest filing in each. No technology classification is inferred from titles.
Method for Transmitting and Receiving Random Access Request and Transmitting and Receiving Random Access Response19 in forceto Jul 2029
Apparatus and Method for Transmitting/Receiving Activation Indicator Regarding Component Carrier in Wireless Communication System9 in forceto Jun 2031
Methods for Transmitting and Receiving Hybrid Automatic Retransmit Request-Acknowledgment (HARQ-ACK) Index Mapping and Uplink Resource Allocation for Channel Selection Transmission in Inter-Band Time Division Duplex Mode, User Equipment to Transmit HARQ-Ack, and En8 in forceto Nov 2033
Apparatus and Method for Uplink Synchronizing in Multiple Component Carrier System8 in forceto Aug 2033
Call Forwarding System and Method for Forwarding a Call to a Terminal Through Near-Field Wireless Communication8 in forceto Oct 2031

Patents held now

Soonest term end first.
PatentTitleStatusExpiresConfidence
US 8,074,143Detection, Avoidance And/Or Correction of Problematic Puncturing Patterns in Parity Bit Streams Used When Implementing Turbo Codes
In force
 · Medium confidence
In forceMedium confidence
US 7,532,603Method and System for Monitoring Broadcast Slot of Mobile Station
In force
 · High confidence
In forceHigh confidence
US 7,647,058Method and System for Processing Broadcast SMS Message in Mobile Communication Terminal, and Mobile Communication Terminal Having the System
In force
 · High confidence
In forceHigh confidence
US 7,471,967Wireless Communication Terminal with an Opening/Closing Sensing Function Using a Plurality of Magnetic Pole Sensors and Method Therefor
In force
 · High confidence
In forceHigh confidence
US 7,831,248Apparatus and Method for Detecting Communication Operation Resulted from an Erroneous Content in Mobile Platform
In force
 · High confidence
In forceHigh confidence
US 7,574,130Mobile Communication Terminal Having Camera Function and Method of Controlling Photographing Process Thereof
In force
 · High confidence
In forceHigh confidence
US 7,466,995Mobile Communication Terminal Having Malfunction-Preventing Function
In force
 · High confidence
In forceHigh confidence
US 7,412,262Mobile Communication Terminal Including of Which Menu Can Be Constructed by Using Mobile Flash
In force
 · High confidence
In forceHigh confidence
US 7,505,737Apparatus for Generating Clock Signal in Mobile Communication Terminal
In force
 · High confidence
In forceHigh confidence
US 7,512,428Twist-Type Mobile Terminal and Hinge Device Thereof
In force
 · High confidence
In forceHigh confidence
10 of 366 patents shown.
Pro members see all 366.
Pro members: see all 366 patents
Also on record, not counted in the 366: 73 patents in force now held by others · 264 patents ended · 12 applications pending · 62 applications abandoned. List them

Sources and methods

Compiled from USPTO application file histories, grants and recorded assignments, with the company's own names reviewed by hand. How this record was built
Portfolio grouped automatically from ownership conveyances to the names matched to this company, usually every name that begins with its own, so it counts patents an affiliate holds; each list row names the holder of record. Security interests are excluded and ambiguous records are not reviewed by hand.
Fee due within 90 days marks a patent with a maintenance fee due within 90 days of the date this page was computed and not yet recorded paid, so it can end earlier than the bar shows. A fee left unpaid ends the patent at the close of the six month grace period that follows its due date, not on the due date itself. It is not a prediction that the fee will be missed.
Computed patent terms end on the dates shown. Related patents and pending applications may cover overlapping subject matter.
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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