Keith Manufacturing CO
At a glance
Employees100-499
In business since1981
HeadquartersMadras, OR
US patents26
SAM.gov UEIKA45J4UU2GX8
CAGE code21S42
Incorporated inOR
LEI549300MD2U4OD0UJRV45
Brands
This company sells these brands.
- unloading
- trailers
- components
- bulk material handling
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
26 US patents granted 1980–2024, 3 of them in the five years to SEP 2025.
Handling 24Machine tools 1Transport 1
- Gap filler for reciprocating floor slat conveyorUS 11,987,449 · granted MAY 21, 2024
- Gap filler for reciprocating floor slat conveyorUS 11,383,934 · granted JUL 12, 2022
- Interference fit center head for hydraulic cylinderUS 10,899,549 · granted JAN 26, 2021
- End plug for floor slatUS 10,611,579 · granted APR 7, 2020
- Extruded chain rail for loading systemUS 10,472,177 · granted NOV 12, 2019
Newest 5 shown · Granted to Keith Manufacturing Co. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Keith Manufacturing CO | Madras | OR | 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.