| CNC MILLING | Company website | 1 |
| CNC TURNING | Company website | 1 |
| Coagulator-Cutter, Endoscopic, Bipolar (And Accessories) | Federal registry | 1 |
| Coagulator-Cutter, Endoscopic, Unipolar (And Accessories) | Federal registry | 1 |
| Coagulator, Laparoscopic, Unipolar (And Accessories) | Federal registry | 1 |
| Coil, Magnetic Resonance, Specialty | Federal registry | 1 |
| Collagen Surgical Mesh Containing Drugs | Federal registry | 1 |
| Collector, Urine, Powered, Non Indwelling Catheter | Federal registry | 1 |
| Colorimetric Method, Cpk Or Isoenzymes | Federal registry | 1 |
| Colorimetric Method, Gamma-Glutamyl Transpeptidase | Federal registry | 1 |
| Columns | Company website | 1 |
| Columns, Liquid Chromatography | Federal registry | 1 |
| Combination Compression/Decompression Manual Chest Pump With Impedance Respiratory Valve | Federal registry | 1 |
| Comparison Of Freezing Points & Stds. Of Known Osmotic Pressure, Osmolality | Federal registry | 1 |
| Components, Exercise | Federal registry | 1 |
| Condom | Federal registry | 1 |
| Condom, Synthetic | Federal registry | 1 |
| Congo Red | Federal registry | 1 |
| Connector, Airway (Extension) | Federal registry | 1 |
| Connector, Ureteral Catheter | Federal registry | 1 |
| Container, Liquid Medication, Graduated | Federal registry | 1 |
| Container, Sharps | Federal registry | 1 |
| Container, Specimen Mailer And Storage, Sterile | Federal registry | 1 |
| Container, Specimen, Sterile | Federal registry | 1 |
| Container, Specimen, Urine, Drugs Of Abuse, Over The Counter | Federal registry | 1 |
| Containment System, Laparoscopic Power Morcellation, With Instrument Port | Federal registry | 1 |
| Continuous Glucose Monitor Informed Insulin Dose Calculator | Federal registry | 1 |
| Continuous Glucose Monitor Retrospective Data Analysis Software | Federal registry | 1 |
| Control, Fecal Occult Blood | Federal registry | 1 |
| Control, Plasma, Abnormal | Federal registry | 1 |
| Control, Pump Speed, Cardiopulmonary Bypass | Federal registry | 1 |
| Controls | Company website | 1 |
| Cord Blood Processing System And Storage Container | Federal registry | 1 |
| Coronary Drug-Eluting Stent | Federal registry | 1 |
| Coronavirus Antigen Detection Test System. | Federal registry | 1 |
| Counter (Beta, Gamma) For Clinical Use | Federal registry | 1 |
| Counter, Differential Cell | Federal registry | 1 |
| Cover, Burr Hole | Federal registry | 1 |
| Cover, Limb | Federal registry | 1 |
| Cover, Mattress (Medical Purposes) | Federal registry | 1 |
| Covers | Company website | 1 |
| C-Reactive Protein, Antigen, Antiserum, And Control | Federal registry | 1 |
| Cresolphthalein Complexone, Calcium | Federal registry | 1 |
| Crown, Preformed | Federal registry | 1 |
| Culdoscope (And Accessories) | Federal registry | 1 |
| Cultured Epithelial Autograft | Federal registry | 1 |
| Cultured Human Cell Skin Dressing | Federal registry | 1 |
| Curette, Surgical, General Use | Federal registry | 1 |
| Curette, Uterine | Federal registry | 1 |
| Cushion, Wheelchair | Federal registry | 1 |
