Proco Products, INC
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersStockton, CA
US patents3
SAM.gov UEIHNCCXVH5Q3L6
CAGE code0B1N0
Incorporated inCA
- rubber check valves
- ANSI
- mining
- pre-existing pipeline
- manholes
- vaults
- pipelines
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
3 US patents granted 1990–2022, 2 of them in the five years to SEP 2025.
Mechanical elements 1Civil engineering 1Transport 1
- Check valveUS 11,396,951 · granted JUL 26, 2022
- Check valveUS 11,221,081 · granted JAN 11, 2022
- Load enhancer for dump trucksUS 4,940,287 · granted JUL 10, 1990
Granted to Proco Products, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Proco Products, INC | Stockton | CA | — | 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.