Patent classifications
A
HUMAN NECESSITIES
Load children
A61
MEDICAL OR VETERINARY SCIENCE; HYGIENE
Load children
A61K
PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
Load children
49/00
Preparations for testing in vivo
Load children Filter patents View analytics View as hierarchy
A61K49/22
Echographic preparations; Ultrasonic imaging preparations
Load children Filter patents View analytics View as hierarchy
A61K49/222
characterised by a special physical form, e.g. emulsions, liposomes
Load children Filter patents View analytics View as hierarchy
A61K49/223
Microbubbles, hollow microspheres, free gas bubbles, gas microspheres
Filter patents View analytics View as hierarchy