Geophex Limited
At a glance
Employees1-19
In business since1983
HeadquartersRaleigh, NC
US patents3
SAM.gov UEIDNS7RSJP91R5
CAGE code46211
Incorporated inNC
Brands
AvatarThis company sells these brands.
- geophysical research
- instrumentation
- North Carolina
- instruments
- GEM-2
- GEM-3
- GEM-3R
- mining
- construction
Named on the company’s own website, read JUL 29, 2026
Patents
3 US patents granted 1996–2001, none of them in the five years to SEP 2025.
Measurement 3
- Electromagnetic gradiometer having a primary detector and a plurality of secondary detectorsUS 6,204,667 · granted MAR 20, 2001
- Electromagnetic induction spectroscopy for identifying hidden objectsUS 5,963,035 · granted OCT 5, 1999
- Apparatus and method for detecting a weak induced magnetic field by means of two concentric transmitter loopsUS 5,557,206 · granted SEP 17, 1996
Granted to Geophex, Ltd. · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Geophex Limited | Raleigh | NC | 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.