Diagnosys LLC
At a glance
Employees1-19
In business since1983
HeadquartersLowell, MA
US patents7
SAM.gov UEIYB8WSD4ESAE1
CAGE code1E3M2
Incorporated inMA
- visual electrophysiology
- trial services
- protocols
- peer-reviewed journal publications
- Georgia Society
- British Society
- Clinical Electrophysiology
- Vision
Named on the company’s own website, read JUL 29, 2026
What they make
Adaptometer (Biophotometer), Software-Based Data Acquisition And Stimulus GenerationDigital Visual Acuity TestElectrode, CornealPreamplifier, Ac-Powered, OphthalmicPupillometer, Ac-PoweredStimulator, Photic, Evoked Response
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
7 US patents granted 2020–2025, 6 of them in the five years to SEP 2025.
Medical technology 6Transport 1
- Methods and apparatus for removing artifacts from an electroretinogramUS 12,343,174 · granted JUL 1, 2025
- Method and apparatus for the assessment of electrophysiological signalsUS 12,076,154 · granted SEP 3, 2024
- Electrically evoked response (EER) stimulator/amplifier combinationUS 11,497,911 · granted NOV 15, 2022
- Combined stimulator and electrode assembly for mouse electroretinography (ERG)US 11,357,442 · granted JUN 14, 2022
- Method and apparatus for the assessment of electrophysiological signalsUS 10,893,823 · granted JAN 19, 2021
Newest 5 shown · Granted to Diagnosys LLC · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Diagnosys LLC | Lowell | MA | 1–19 | 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.


