Ark Diagnostics, INC.
Doing business as Ark Diagnostics INC
At a glance
EmployeesNot reported
In business sinceNot reported
HeadquartersFremont, CA
US patents24
SAM.gov UEIYFBTQKJJ3MW7
CAGE code46Y91
Incorporated inCA
Brands
Zopiclone
Adlm 2025
Ethyl Glucuronide IIThis company sells these brands.
- vitro diagnostic immunoassays
- therapeutic drug monitoring
- urine drug testing
- homogeneous enzyme immunoassay
- development
- assays
- clinical chemistry systems
- antibiotics
- CE Mark
Named on the company’s own website, read JUL 29, 2026
What they make
Calibrators, Drug SpecificDrug Specific Control MaterialsEnzyme Immunoassay, AmphetamineEnzyme Immunoassay, CannabinoidsEnzyme Immunoassay, GentamicinEnzyme Immunoassay, MethadoneEnzyme Immunoassay, MethotrexateEnzyme Immunoassay, OpiatesEnzyme Immunoassay, Oxcarbazepine MetaboliteEnzyme Immunoassay, PhencyclidineGabapentin AssayImmunoassay, Anti-Seizure DrugLamotrigine AssayLevetiracetam AssayRadioimmunoassay, VancomycinTest, Benzodiazepine, Employment And Insurance Testing, ExemptTest, Opiates, Employment And Insurance Testing, ExemptTest Reagents For Ethyl AlcoholVoriconazole Test System
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of Goods
Self-certified by the company in its SAM.gov registration
Patents
24 US patents granted 2012–2025, 13 of them in the five years to SEP 2025.
Measurement 21Pharmaceuticals 3
- Antibodies to symmetrically dimethylated arginine analytes and use thereofUS 12,391,767 · granted AUG 19, 2025
- Levetiracetam immunoassaysUS 12,203,938 · granted JAN 21, 2025
- Antibodies to methotrexate and uses thereofUS 12,163,955 · granted DEC 10, 2024
- Compounds and methods for use in detecting gabapentinUS 11,867,705 · granted JAN 9, 2024
- Pregabalin immunoassaysUS 11,703,514 · granted JUL 18, 2023
Newest 5 shown · Granted to Ark Diagnostics, Inc. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Ark Diagnostics, INC. | Fremont | 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.

