Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12344297 | Warning light sensor system for automatically determining a proper operation of a railroad crossing warning system | — | 2025-07-01 |
| 11987278 | Redundant, self-deterministic, failsafe sensor systems and methods for railroad crossing and adjacent signalized intersection vehicular traffic control preemption | — | 2024-05-21 |
| 11967242 | Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods | — | 2024-04-23 |
| 11427234 | Railroad car location, speed, and heading detection system and methods with self-powered wireless sensor nodes | — | 2022-08-30 |
| 10967894 | Redundant, self-deterministic, failsafe sensor systems and methods for railroad crossing and adjacent signalized intersection vehicular traffic control preemption | — | 2021-04-06 |
| 10899374 | Video analytic sensor system and methods for detecting railroad crossing gate position and railroad occupancy | — | 2021-01-26 |
| 10850756 | Redundant, self-deterministic, failsafe sensor systems and methods for object detection, speed and heading | — | 2020-12-01 |
| 10665118 | Railroad crossing and adjacent signalized intersection vehicular traffic control preemption systems and methods | — | 2020-05-26 |
| 10556606 | Railroad car location, speed, and heading detection system and methods with self-powered wireless sensor nodes | — | 2020-02-11 |
| 9376129 | Methods and systems for detection and notification of blocked rail crossings | — | 2016-06-28 |
| 9193367 | Crossing proximity and train-on-approach notification system | — | 2015-11-24 |
| 8909396 | Methods and systems for detection and notification of blocked rail crossings | — | 2014-12-09 |
| 8596587 | Systems and methods for redundant vehicle detection at highway-rail grade crossings | — | 2013-12-03 |
| 7317321 | Methods and systems for automated pipeline testing | — | 2008-01-08 |
| 7068052 | Methods and systems for automated pipeline testing | Perry Peden, Jr. | 2006-06-27 |
| 6822432 | Methods and systems for automated pipeline testing | — | 2004-11-23 |
| 6774814 | Pipe-to-soil testing apparatus and methods | — | 2004-08-10 |
| 6641091 | Highway railroad crossing vehicle detection methods and systems | — | 2003-11-04 |
| 6618394 | Methods and apparatus for economical utilization of communication networks | — | 2003-09-09 |
| 6502030 | Web based vehicle tracking and user on-board status system | — | 2002-12-31 |
| 6369704 | Method and apparatus for light outage detection | — | 2002-04-09 |
| 6340139 | Highway grade crossing vehicle violation detector | — | 2002-01-22 |
| 6222446 | Method and apparatus for light outage detection | — | 2001-04-24 |
| 5335267 | Apparatus and method for transmitting text data directly to a facsimile machine | John Evers | 1994-08-02 |
| 4577062 | Method for dispensing information | Robert Douglas Fulton | 1986-03-18 |