The Patent Finder

Aj Technologies LLC

14 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
Dec 2031
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 May 24, 2027
    The maintenance fee for Crossing Proximity and Train-On-Approach Notification System (US 9,193,367) comes due May 24, 2027. Unpaid by Nov 24, 2027, it lapses early.
  • 1 fee due Aug 11, 2027
    The maintenance fee for Railroad Car Location, Speed, and Heading Detection System and Methods with Self-Powered Wireless Sensor Nodes (US 10,556,606) comes due Aug 11, 2027. Unpaid by Feb 11, 2028, it lapses early.
  • 1 fee due Oct 23, 2027
    The maintenance fee for Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods (US 11,967,242) comes due Oct 23, 2027. Unpaid by Apr 24, 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 8,596,587Systems and Methods for Radar-Based Vehicle Detection at Highway-Rail Grade Crossings
In force
 · High confidence
In forceHigh confidence
US 8,909,396Methods and Systems for Detection and Notification of Blocked Rail Crossings
In force
 · High confidence
In forceHigh confidence
US 9,376,129Methods and Systems for Detection and Notification of Blocked Rail Crossings
In force
 · High confidence
In forceHigh confidence
US 9,193,367Crossing Proximity and Train-On-Approach Notification System
In force
 · High confidence
In forceHigh confidence
US 11,987,278Redundant, self-deterministic, failsafe sensor systems and methods for railroad crossing and adjacent signalized intersection vehicular traffic control preemption
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,967,894Redundant, self-deterministic, failsafe sensor systems and methods for railroad crossing and adjacent signalized intersection vehicular traffic control preemption
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,665,118Railroad Crossing and Adjacent Signalized Intersection Vehicular Traffic Control Preemption Systems and Methods
In force
 · High confidence
In forceHigh confidence
US 12,344,297Warning light sensor system for automatically determining a proper operation of a railroad crossing warning system
In force
 · From the USPTO record
In forceFrom the USPTO record
US 11,427,234Railroad car location, speed, and heading detection system and methods with self-powered wireless sensor nodes
In force
 · From the USPTO record
In forceFrom the USPTO record
US 10,899,374Video Analytic Sensor System and Methods for Detecting Railroad Crossing Gate Position and Railroad Occupancy
In force
 · High confidence
In forceHigh confidence
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.
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