Cem Holdings Corporation
Doing business as Cem Instruments
At a glance
Employees100-499
In business since1978
HeadquartersMatthews, NC
US patents156
SAM.gov UEIFEHTUMUX11D4
CAGE code7QEE6
Incorporated inNC
- ashing
- drying
- fat analysis
- hydrolysis
- microwave digestion
- microwave synthesis
- solids analysis
- peptide synthesis
- preparative HPLC
- protein analysis
Named on the company’s own website, read JUL 29, 2026
CareersCareers page — seen SEP 8, 2026
Supplier designations
For Profit OrganizationManufacturer of GoodsSubchapter S Corporation
Self-certified by the company in its SAM.gov registration
Patents
156 US patents granted 1981–2024, 5 of them in the five years to SEP 2025, including 1 design patent.
Measurement 84Electrical machinery, apparatus, energy 24Biotechnology 20Chemical engineering 16Organic fine chemistry 4
- Cap for a reaction vessel or the likeUS D1028279 · granted MAY 21, 2024
- Solid phase peptide synthesesUS RE49961 · granted MAY 7, 2024
- Pressure-release vessel with rigid proportional liner and associated microwave-assisted chemistry methodsUS 11,351,515 · granted JUN 7, 2022
- Solvent system for solid phase peptide synthesisUS 11,014,959 · granted MAY 25, 2021
- Use of excess carbodiimide for peptide synthesis at elevated temperaturesUS 10,858,390 · granted DEC 8, 2020
Newest 5 shown · Granted to CEM Corporation · PatentsView (USPTO), data through SEP 30, 2025 · CC BY 4.0
Their plant
| Facility | City | State | Employees | Status |
|---|---|---|---|---|
| Cem Holdings Corporation | Matthews | NC | 100–499 | 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.