Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups , or

Introduced: September 1968

Last revised: January 2006

Classification Context

Section:: PHYSICS
Class:: MEASURING; TESTING
Subclass:: INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Apparatus for medical or veterinary radiation diagnosis on the human or animal body, e.g. combined with radiation therapy equipment

for investigating or analysing materialinvestigating or analysing materials using X-RAY(S)

3 direct subcodes

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G01N 23/02 by transmitting the radiation through the material
G01N 23/2 by using diffraction of the radiation by the materials, e.g. for investigating crystal structure; by using scattering of the radiation by the materials, e.g. for investigating non-crystalline materials; by using reflection of the radiation by the materials
G01N 23/22 by measuring secondary emission from the material

Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT