Material Of Active Region (epo) Patents (Class 257/E33.013)
E Subclasses
- Comprising only Group IV-VI compound (EPO) (Class 257/E33.038)
- Comprising only Group II-IV-VI compound (EPO) (Class 257/E33.039)
- Comprising only Group I-III-VI compound (EPO) (Class 257/E33.04)
- Characterized by doping material (EPO) (Class 257/E33.041)
- Comprising only Group IV-VI or II-IV-VI compound (EPO) (Class 257/E33.042)