someone who has invented something or whose job is to invent things
Eg:
A[edit]
Vitaly Abalakov (19061986), Russia camming devices, Abalakov thread (or V-thread) gearless ice climbing anchor
Ernst Karl Abbe (18401905), Germany Condenser (microscope), apochromatic lens, refractometer
Hovannes Adamian (18791932), USSR/Russia tricolor principle of the color television
Samuel W. Alderson (19142005), U.S. Crash test dummy
Alexandre Alexeieff (19011982), Russia/France Pinscreen animation (with his wife Claire Parker)
Rostislav Alexeyev (19161980), Russia/USSR Ekranoplan