Stc INC
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersMcleansboro, IL
US patents42
SAM.gov UEIN7W7EM9NLHD6
CAGE code0BBP3
Incorporated inIL
- transformers
- coils
- inductors
- chokes
- 5 KVA
- aerospace
- medical
- defense
- renewable energy
- marine
- broadcast electronics
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
42 US patents granted 1987–2025, 20 of them in the five years to SEP 2025, including 1 design patent.
Control 23Transport 10Medical technology 2Macromolecular chemistry, polymers 2Digital communication 1
- Systems and methods for pacing a mass transit vehicleUS 12,431,016 · granted SEP 30, 2025
- Railway safety notification system and device with proportional warningsUS 12,304,538 · granted MAY 20, 2025
- Systems and methods for traffic priority systemsUS 12,167,440 · granted DEC 10, 2024
- Systems and methods for roadway management including feedbackUS 12,165,509 · granted DEC 10, 2024
- Mass transit safety notification system and deviceUS 12,162,524 · granted DEC 10, 2024
Newest 5 shown · Granted to STC, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plants
2 FACILITIESCompiled from federal records — EPA, OSHA, SAM.gov and the U.S. Census — and from the company’s own website. Federal source data is public domain. Each plant’s page names the source of every field.