Stop the fire before it starts.
Blaze Block is a patented underbody spray system that prevents emergency and fleet vehicles from igniting dry vegetation — the leading cause of vehicle-started wildfires. Built around a thermistor-gated circuit that automatically disables in freezing weather.
Hot exhaust + dry grass = the fire nobody plans for.
Catalytic converters run between 800°F and 1,200°F. A patrol car parked on dry grass for ten minutes can become an ignition source.
Departments know it. Drivers don't. And every wildfire season, the consequences make the news.
Emergency vehicles can't avoid grass
Officers and first responders routinely park on shoulders, medians, and dry vegetation. Texas departments now enforce a 10-minute cap before vehicles must be moved.
Roadside stops turn deadly
A driver pulls onto the shoulder for a sick child. Catalytic converter ignites the grass underneath. Each year, preventable underbody fires destroy vehicles and take lives.
Wildfires need an ignition source
Vehicle-started wildfires are a documented and growing cause of large-scale burns across the U.S. West. The underbody is one of the most overlooked vectors.
An underbody spray system that knows when not to fire.
Blaze Block mounts a small reservoir, pump, and array of nozzles to the vehicle's undercarriage. The control circuit uses a thermistor to lock the system out below 40°F — so it never sprays water on a freezing road.
Driver activates the switch
A dashboard control or auto-trigger pressurizes the system through the existing 12V or 24V vehicle electrical bus.
Thermistor checks ambient temp
Below 40°F, the thermistor closes the circuit and locks the pump out — no water on freezing roads. Above 40°F, the system arms.
Nozzles wet down vegetation
Multiple undercarriage nozzles spray water around the catalytic converter, exhaust piping, and muffler — cooling and saturating the ignition zone.
Refillable, repeatable, simple
Reservoir refills through a fill cap. No proprietary fluids — water only. Aftermarket-ready as a kit, OEM-ready as a factory option.
What makes Blaze Block defensible.
Plenty of underbody spray concepts have come and gone. The thermistor-gated control circuit is what makes this one safe enough to deploy — and why it cleared the USPTO.
Cold-weather lockout
The thermistor presents an open circuit above 40°F (system armed) and a closed circuit below 40°F (system disabled). No accidental sheets of road ice. This is the claim that makes the device deployable on public roads year-round.
Works on any 12V/24V vehicle
Designed to draw from the vehicle's existing electrical system. Patent claims explicitly cover passenger sedans, SUVs, pickups, off-road, agricultural, and construction vehicles — a wide commercial moat.
Factory or aftermarket
Specified to ship as standard or optional equipment from a vehicle manufacturer, or as a retrofit kit through automotive supply channels. Both go-to-market paths are covered in the patent.
Water only — by design
No specialty chemicals to source, ship, or service. End users refill the reservoir from a hose. Lower regulatory burden and lower lifetime cost than competing fire-suppression systems.
Multiple billion-dollar verticals — one piece of IP.
The patent claims cover the full ladder of vehicles that operate near dry vegetation. Each is a separate licensing opportunity.
Law Enforcement
Patrol fleets, highway, parks
Fire / EMS
Brush trucks, ambulances
Agriculture
Tractors, harvesters, ATVs
Construction
Site trucks, off-road equipment
Fleet & Utility
Power, gas, telecom field crews
Defense
Tactical & off-road military
Forestry / Parks
USFS, BLM, state parks fleets
Consumer Off-Road
Overlanders, ranchers, hunters
PATENT
12,478,811 B1
U.S. Patent 12,478,811 B1
Title: Thermistor for Windshield Sprayer Circuit (Vegetation Spray Device)
Inventor: Clifford B. Breed
Filed: January 15, 2023 · Granted: November 25, 2025
Claims: 2 independent claims, 4 drawing sheets
Full document available on request as part of the licensing brief.
Built by a serial inventor with a public-safety obsession.
Clifford B. Breed
Clifford is a Fort Worth-based inventor with multiple granted U.S. patents and a track record of identifying overlooked consumer-safety problems. Blaze Block came from a conversation with a Texas police officer about the 10-minute rule for parking patrol cars on grass — and from years of news stories about families losing vehicles, and sometimes lives, after a routine roadside stop. Clifford develops his ideas under his umbrella brand, Gifted Ideas, and is now seeking the right partner to bring Blaze Block to market at scale.
Let's talk about bringing Blaze Block to market.
Whether you're an OEM, a Tier-1 supplier, a fleet operator, or a public-safety investor — we want to hear from you.
Looking for the right partner to take Blaze Block to market.
If you're an OEM, a Tier-1 supplier, a fleet operator, or an investor focused on public-safety tech — let's talk. We're open to exclusive licensing by vertical, full IP acquisition, or strategic partnerships.