Wichorus, LLC

32 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 3 name spellings.

Ending by 2030

Dec 2026

Next term end

When these terms end

5 yrs10 yrs20 yrs

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 30, 2026
The maintenance fee for Methods and apparatus for identifying paging activities during idle mode (US 9,071,635) comes due Dec 30, 2026. Unpaid by Jun 30, 2027, it lapses early.
1 fee due Jan 14, 2027
The maintenance fee for Apparatus And Method For Controlling Traffic Flow In Backhaul Link In Wireless Communication Network (US 9,084,154) comes due Jan 14, 2027. Unpaid by Jul 14, 2027, it lapses early.
1 fee due Feb 11, 2027
The maintenance fee for Method and Apparatus for Switching Communications Traffic in a Communications Network (US 9,106,563) comes due Feb 11, 2027. Unpaid by Aug 11, 2027, it lapses early.
1 fee due Mar 22, 2027
The maintenance fee for Method and Apparatus for Managing Connection Identifiers (CIDs) in a Wireless Communication Network (US 9,143,927) comes due Mar 22, 2027. Unpaid by Sep 22, 2027, it lapses early.
1 fee due Aug 23, 2027
The maintenance fee for Methods and Apparatus for Improving Idle Mode Performance Using Deep Packet Inspection (DPI) Idle Mode Agent (US 9,270,603) comes due Aug 23, 2027. Unpaid by Feb 23, 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.

Patent	Title	Status	Expires	Confidence
US 8,224,340	Method and Apparatus to Estimate Relative Base Station and Subscriber Terminal Locations and Using It to Increase Frequency Reuse In force Term ends Dec 22, 2026 · High confidence	In force	Term ends Dec 22, 2026	High confidence
US 8,036,198	Method and System for Managing Communication in an OFDMA System In force Term ends May 29, 2027 · High confidence	In force	Term ends May 29, 2027	High confidence
US 7,746,839	Method and System for Managing Communication in an OFDMA System In force Term ends Jul 18, 2028 · High confidence	In force	Term ends Jul 18, 2028	High confidence
US 9,084,154	Apparatus And Method For Controlling Traffic Flow In Backhaul Link In Wireless Communication Network In force Term ends Sep 6, 2028 · High confidence	In force	Term ends Sep 6, 2028	High confidence
US 7,738,875	Method and Apparatus to Estimate Relative Base Station and Subscriber Terminal Locations and Using It to Increase Frequency Reuse In force Term ends Oct 30, 2028 · High confidence	In force	Term ends Oct 30, 2028	High confidence
US 8,687,482	Apparatus and Method for Controlling Traffic Flow in Backhaul Link in Wireless Communication Network In force Term ends Dec 20, 2028 · High confidence	In force	Term ends Dec 20, 2028	High confidence
US 8,494,450	Method and System for Managing Communication in a Frequency Division Multiple Access (FDMA) Communication Network In force Term ends Mar 11, 2029 · High confidence	In force	Term ends Mar 11, 2029	High confidence
US 8,284,715	Method and Apparatus for Network Wide Adaptive Resource Allocation for OFDMA/Tdma Networks In force Term ends Dec 23, 2029 · High confidence	In force	Term ends Dec 23, 2029	High confidence
US 8,265,627	Method and Apparatus for Handover in Wireless Communication Network In force Term ends Jan 15, 2030 · High confidence	In force	Term ends Jan 15, 2030	High confidence
US 8,849,275	Method and Apparatus for Load Balancing in a Wireless Communication Network In force Term ends Apr 25, 2030 · High confidence	In force	Term ends Apr 25, 2030	High confidence

10 of 32 patents shown.

Pro members see all 32.

Pro members: see all 32 patents

Also on record, not counted in the 32: 5 lapsed for an unpaid fee. 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.

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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.

2 abandoned · 1 no status recorded

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