Thermionics Laboratory, INC.
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersHayward, CA
US patents3
SAM.gov UEIH79AMZDV1UL1
CAGE code61764
Incorporated inCA
- e-Guns
- chambers
- crucible auto
- manual indexers
- components
- aerospace
- defense
- energy storage
- linear accelerators
- cryogenic science
- production environments
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
3 US patents granted 1981–1987, none of them in the five years to SEP 2025.
Mechanical elements 3
- Seal structure for metal vacuum jointUS 4,685,193 · granted AUG 11, 1987
- Seal structure for metal vacuum jointUS 4,616,860 · granted OCT 14, 1986
- Gate valve with slideable closure expandable upon oscillationUS 4,291,861 · granted SEP 29, 1981
Granted to Thermionics Laboratory, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Thermionics Laboratory, INC. | Hayward | 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.


