Office Master INC.
Doing business as Office Master INC
At a glance
Employees20-99
In business sinceNot reported
HeadquartersOntario, CA
US patents14
SAM.gov UEIXN8EEM4RJK65
CAGE code3HYL1
Incorporated inCA
- chairs
- exam room stools
- lab stools
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsMinority Owned Business
Self-certified by the company in its SAM.gov registration
Patents
14 US patents granted 2011–2021, 1 of them in the five years to SEP 2025, including 7 design patents.
Furniture, games 7
- Nesting chair with flip seat and movementUS 11,166,554 · granted NOV 9, 2021
- Chair rocker baseUS D889177 · granted JUL 7, 2020
- Office chairUS D869213 · granted DEC 10, 2019
- Four leg chair baseUS D858164 · granted SEP 3, 2019
- Chair back with height and lumbar adjustmentUS 9,968,199 · granted MAY 15, 2018
Newest 5 shown · Granted to Office Master Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plants
2 FACILITIES| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Office Master, INC. | La Verne | CA | — | UNVERIFIED |
| Office Master INC. | Ontario | CA | 20–99 | 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.