The Patent Finder

Lilee Systems, Ltd.

4 patents currently held · Updated Nov 14, 2026
Held is read from USPTO's recorded assignments; a transfer never recorded there does not appear.
0
Ending by 2030
Nov 2031
Next term end

When these terms end

Held patents by the year their term ends
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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 Mar 8, 2027
    The maintenance fee for Method and system of admission control for wireless train communication system (US 9,131,497) comes due Mar 8, 2027. Unpaid by Sep 8, 2027, it lapses early.

Which patents, and when each one lapses · Pro

Recent changes

  • 1 term has 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.

Showing 1 to 4 of 4

PatentTitleStatus Expires Confidence
US 8,913,651System and method of frequency offset compensation for radio system with fast doppler shift
In force
 · From the USPTO record
In forceFrom the USPTO record
US 8,654,743Device and method for configurable transmit and receive antennas
In force (reinstated)
 · From the USPTO record
In force (reinstated)From the USPTO record
US 9,131,497Method and system of admission control for wireless train communication system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 9,992,046Method and apparatus of iterative channel tracking for MIMO-OFDM system
In force (reinstated)
 · From the USPTO record
In force (reinstated)From the USPTO record
Also on record, not counted in the 4: 1 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.

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