Dupree, INC
Doing business as Stake Fastener CO
At a glance
EmployeesNot reported
In business sinceNot reported
Industry
HeadquartersChino, CA
US patents5
SAM.gov UEIFALNCJQTU3G3
CAGE code66071
Incorporated inCA
- screws
- washers
- color coated
- pressure displacement fasteners
- thermosetting coating material
- special-purpose vehicles
Named on the company’s own website, read JUL 29, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
5 US patents granted 1986–1995, none of them in the five years to SEP 2025.
Measurement 4Mechanical elements 1
- Sperm densimeterUS 5,402,240 · granted MAR 28, 1995
- Captive panel screw assemblyUS 4,952,107 · granted AUG 28, 1990
- Lamp analyzerUS 4,720,190 · granted JAN 19, 1988
- Sperm densimeterUS 4,632,562 · granted DEC 30, 1986
- Sperm densimeterUS 4,589,774 · granted MAY 20, 1986
Granted to Dupree, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Dupree, INC | Chino | 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.