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PCE
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DIFF Subgroup
G03C 1/09

Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising (G03C1/34, G03C1/35 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising

CPC: Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising (G03C1/34, G03C1/35 take precedence)

Full Title

Full titles differ between systems:

IPC:

Photosensitive materials > Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein > with non-macromolecular additives > Sensitivity-increasing substances > Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising

CPC:

Photosensitive materials (photosensitive materials for multicolour processes G03C7/00; for diffusion transfer processes G03C8/00; photosensitive glass C03C4/04) > Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein (catalytic amounts of silver halide in dry silver systems G03C1/494) > with non-macromolecular additives (G03C1/047 takes precedence; ) > Sensitivity-increasing substances > Noble metals or mercury; Salts or compounds thereof; Sulfur, selenium or tellurium, or compounds thereof, e.g. for chemical sensitising (G03C1/34, G03C1/35 take precedence)

Of 8 combined children, 0 exist in both systems.

8 codes are CPC-only extensions.

Note: 8 CPC extensions are marked as secondary classification only.

Child Classifications

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