Justin Capră: engineer and inventor; machines on which he worked included a jetpack, 72 fuel-efficient cars, 15 unconventional engines and seven aircraft, among others.
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Carol Davila: invented the Davila tincture used for the treatment of cholera, an opioid-based oral solution in use for symptomatic management of diarrhea.
Anastase Dragomir: he invented the parachuted cell, a dischargeable chair from an aircraft or other vehicle, designed for emergency escapes, an early version of the modern ejection seat.
Spiru Haret: he made a fundamental contribution to the n-body problem in celestial mechanics by proving that using a third degree approximation for the disturbing forces implies instability of the major axes of the orbits, and by introducing the concept of secular perturbations in relation to this.
Horia Hulubei: he is the first physicist in the world to obtain X-ray spectra in gases. He has important contributions in neutron physics and in the study of nuclear reactions.
Florentina I. Mosora: Romanian biophysicist who worked at first in the "Carol Davila" School of Medicine of the University of Bucharest, and subsequently in Belgium at the University of Liege; specialized in Nuclear Medicine, she applied nuclear medicine techniques and invented new methodology for the clinical investigation of type 2 diabetes.
Ioan Pușcaș: Prof. Dr. he proposed the use of carbonic anhydrase (CA) inhibitor acetazolamide to heal peptic ulcers. In 1972 patented the first 100% efficient drug against gastroduodenal ulcer Ulcosilvanil.
Alexandru Proca: he formulated the first mesonic theory of nuclear forces, including the equations for the mesonic vector field that carry his name (Proca's equations), elected post-mortem as a Member of the Romanian Academy.