using nuclear magnetic resonance [NMR] (G01R33/24, G01R33/62 take precedence)

Introduced: January 1990

Title

Titles differ between systems:

IPC: using nuclear magnetic resonance [NMR]

CPC: using nuclear magnetic resonance [NMR] (G01R33/24, G01R33/62 take precedence)

Full Title

Full titles differ between systems:

IPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance > using nuclear magnetic resonance [NMR]

CPC:

Arrangements or instruments for measuring magnetic variables > involving magnetic resonance (medical aspects A61B5/055; magnetic resonance gyrometers G01C19/60) > using nuclear magnetic resonance [NMR] (G01R33/24, G01R33/62 take precedence)

CPC subdivides this area 4x more granularly than IPC with 5 additional codes.

5 codes are CPC-only extensions.

IPC defines codes here since 1990.

Child Classifications

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G01R 33/441 CPC only CPC only
G01R 33/443 CPC only CPC only
G01R 33/445 CPC only CPC only
G01R 33/446 CPC only CPC only
G01R 33/448 CPC only CPC only
G01R 33/46 NMR spectroscopy since 1990 +5 CPC IPC+CPC Available in IPC and CPC
G01R 33/48 NMR imaging systems since 1990 +7 CPC IPC+CPC Available in IPC and CPC