Emergency Technology INC
Doing business as Soundoff Signal
At a glance
Employees100-499
In business sinceNot reported
HeadquartersHudsonville, MI
US patents29
SAM.gov UEIKYAEWJMZ3ML9
CAGE code0BNX0
Incorporated inMI
- UV lights
- work area lighting
- perimeter lighting
- control systems
- scene lights
- professionals
- communication
- roadside safety
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
29 US patents granted 1989–2025, 10 of them in the five years to SEP 2025, including 7 design patents.
Electrical machinery, apparatus, energy 12Transport 8Control 1Measurement 1
- Auxilliary illumination assembly for a vehicleUS 12,276,390 · granted APR 15, 2025
- Lighting fixtureUS D1069628 · granted APR 8, 2025
- Optical element with different transmittances for a lighting assemblyUS 12,078,338 · granted SEP 3, 2024
- Accessory optical path translatorUS 11,752,933 · granted SEP 12, 2023
- Universal smart adaptorUS 11,670,900 · granted JUN 6, 2023
Newest 5 shown · Granted to Emergency Technology, Inc., SoundOff Signal, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Emergency Technology INC | Hudsonville | MI | 100–499 | ACTIVE |
Compiled 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.