On Site Gas Systems INC
At a glance
Employees20-99
In business sinceNot reported
HeadquartersNewington, CT
US patents5
SAM.gov UEIPZYWPUGGJMU6
CAGE code1B3E5
Incorporated inDE
LEI549300TFK074NX15VG67
Brands
O2 Skid
O2 Generator
O2 GeneratorsThis company sells these brands.
- oxygen generators
- cylinder filling systems
- nitrogen membrane
- engineered systems
- portable oxygen generation systems
- beverage
- electronics
- nitrogen generators
- food packaging
- beauty aids
Named on the company’s own website, read JUL 29, 2026
What they make
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Certifications
ISO 13485ISO 9001
Patents
5 US patents granted 1991–2014, none of them in the five years to SEP 2025.
Chemical engineering 3Electrical machinery, apparatus, energy 1Measurement 1
- Method and system for measuring a rate of flow of an outputUS 8,874,388 · granted OCT 28, 2014
- Process and apparatus for providing an inert gas to a large volume atmosphereUS 8,252,090 · granted AUG 28, 2012
- Gas separation vessel with internal partitionUS 8,114,194 · granted FEB 14, 2012
- Method and system for autonomous load sharingUS 8,069,668 · granted DEC 6, 2011
- Fluid adsorption systemUS 5,074,893 · granted DEC 24, 1991
Granted to On Site Gas Systems, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| On Site Gas Systems INC | Newington | CT | 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.