Keystone Rustproofing INC
Doing business as Keystone Rustproofing
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersNew Kensington, PA
US patents1
SAM.gov UEIN9AQT2VTMH83
CAGE code28613
Incorporated inPA
Supplier designations
For Profit OrganizationSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
1 US patent granted SEP 29, 1992.
Chemical engineering 1
- Sludge drying apparatus and methodUS 5,150,531 · granted SEP 29, 1992
Granted to Keystone Rustproofing, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plants
2 FACILITIES| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Keystone Rustproofing INC | Arnold | PA | — | LIKELY ACTIVE |
| Keystone Rustproofing INC | New Kensington | PA | — | LIKELY 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.