Hans Rudolph INC
At a glance
Employees20-99
In business sinceNot reported
HeadquartersLenexa, KS
US patents21
SAM.gov UEIF37FJ26F4GM3
CAGE code6P347
Incorporated inMO
Brands
Eagle Mask
Syringe Validator
SmartLab
7250 Ewot Mask
6250 EWOT MaskThis company sells these brands.
- respiratory valves
- respiratory products
- syringes
Named on the company’s own website, read JUL 29, 2026
What they make
Calibrator, Volume, GasMask, OxygenMask, Oxygen, Non-RebreathingTape And Bandage, AdhesiveVentilator, Continuous, Facility UseVentilator, Non-Continuous (Respirator)
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
21 US patents granted 1989–2016, none of them in the five years to SEP 2025, including 14 design patents.
Medical technology 6Measurement 1
- Respiratory maskUS D761416 · granted JUL 12, 2016
- Ventilation mask with continuous seal connected by resilient cushionUS 8,136,523 · granted MAR 20, 2012
- Respiratory maskUS D573709 · granted JUL 22, 2008
- MaskUS D477074 · granted JUL 8, 2003
- DLco calibration syringe apparatusUS 6,415,642 · granted JUL 9, 2002
Newest 5 shown · Granted to Hans Rudolph, INC. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Hans Rudolph INC | Lenexa | KS | 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.