Comprex, LLC
At a glance
Employees1-19
In business sinceNot reported
HeadquartersLa Crosse, WI
US patents3
SAM.gov UEINKXDKD2W5TN1
CAGE code7B4S3
Incorporated inWI
- heat exchangers
- reactors
- diffusion bonding
- Inconel 617
- nuclear power
- wastewater treatment
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsMinority Owned Business
Self-certified by the company in its SAM.gov registration
Patents
3 US patents granted 1991–2023, 1 of them in the five years to SEP 2025.
Thermal processes and apparatus 1Chemical engineering 1Engines, pumps, turbines 1
- Compact heat exchanger with alternating fluid channelsUS 11,747,088 · granted SEP 5, 2023
- Gas-dynamic pressure-wave supercharger with exhaust bypassUS 5,052,362 · granted OCT 1, 1991
- Process for applying a catalyst layer composed of noble metals and/or noble-metal compounds to a carrier made of ceramic materialUS 5,021,388 · granted JUN 4, 1991
Granted to CompRex, LLC · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Comprex, LLC | La Crosse | WI | 1–19 | 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.