Stc PLC
McLeansboro, IL, US· latest recorded location
STC PLC is named on 35 US grants and 37 published applications in this corpus. Its most frequent classification is G08G (Traffic control systems).
- Granted patents
- 35
- Published applications
- 37
- Inventors
- 13
- Granted in 2026 so far
- 1
- Most recent grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 3 | 3 |
| 2015 | 0 | 0 |
| 2016 | 2 | 2 |
| 2017 | 2 | 2 |
| 2018 | 3 | 2 |
| 2019 | 1 | 1 |
| 2020 | 1 | 5 |
| 2021 | 3 | 4 |
| 2022 | 2 | 4 |
| 2023 | 6 | 3 |
| 2024 | 6 | 4 |
| 2025 | 2 | 4 |
| 2026 | 1 | 0 |
By publication year. 2026 runs to 8 Oct.
Technology areas
Share of 72 documents
- G08GTraffic control systems66
- B61LGuiding railway traffic19
- H04WWireless communication networks16
- H04LDigital communication7
- G08BSignalling systems3
- Y10TTechnical subjects covered by former us classification2
- C08KUse of inorganic or non-macromolecular organic substances as compounding ingredients1
- F01PCooling of machines or engines in general1
- G05DSystems for controlling or regulating non-electric variables1
- G06QInformation and communication technology [ict] specially adapted for administrative, commercial, financial, managerial1
Recent patents
- Systems for signaling protected turns at a traffic intersection14 Jul 2026US 12,682,751 B2
- Systems and methods for pacing a mass transit vehicle30 Sep 2025US 12,431,016 B2
- Railway safety notification system and device with proportional warnings20 May 2025US 12,304,538 B2
- Railway safety notification system and device with track and direction information10 Dec 2024US 12,162,523 B2
- Mass transit safety notification system and device10 Dec 2024US 12,162,524 B2
- Systems and methods for pacing a mass transit vehicle25 Dec 2025US 2025/0391268 A1
- Systems and Methods for Roadway Management Including Feedback27 Mar 2025US 2025/0104555 A1
- Railway Safety Notification System and Device with Track and Direction Information20 Mar 2025US 2025/0091624 A1
- Systems and methods for traffic priority systems27 Feb 2025US 2025/0071798 A1
- Protected turns14 Nov 2024US 2024/0378997 A1
Most cited
By later US patents
- Method and apparatus for stock and index option price improvement, participation, and internalization129US 6,829,589 B12004
- Fail-safe thermostat for vehicular cooling systems46US 4,883,225 A1989
- Mass transit safety notification system and device31US 9,542,852 B22017
- Signal light priority system utilizing estimated time of arrival20US 8,878,695 B22014
- Systems and methods for the detection of pedestrians and small vehicles at roadway intersections19US 9,953,522 B22018