 | Dr. O. Arthur Stiennon, Jr. was a clinical radiologist, inventor, radiation treatment pioneer,... more » |
 | Octave Chanute was born in France but considered himself an American. He was a railway engineer... more » |
 | Ognjeslav Kostović Stepanović was a Serbian inventor. He was born in Wiesburg, Austria to a... more » |
 | Oivin M Guicherit is Director Biological Services at ChemDiv Inc. He was a researcher at... more » |
| Olaf von Ramm is the Thomas Lord Professor of Engineering at Duke University. He is best known... more » |
 | Ole Evinrude, born Ole Andreassen Aaslundeie was a Norwegian-American inventor, known for the... more » |
 | Ole Kirk Christiansen was the founder of Danish toy company called the Lego Group. He was the... more » |
.jpg/240px-Rømer,_Ole_(ur_Berømte_danske_maend).jpg "Ole Rømer") | Ole Christensen Rømer was a Danish astronomer who in 1676 made the first quantitative... more » |
 | Oleg Konstantinovich Antonov was a prominent Soviet aircraft designer, and the first chief of... more » |
 | Oleg Vladimirovich Losev was a scientist and inventor, born to a high-ranking family in Imperial... more » |
.jpg/194px-Oliver_Evans_(Engraving_by_W.G.Jackman,_cropped).jpg "Oliver Evans") | Oliver Evans was an American inventor, engineer and businessman. A pioneer in the fields... more » |
| Sir Oliver Joseph Lodge, FRS was a British physicist and writer involved in the development of... more » |
| Susan Olivia Poole grew up in Minnesota at the White Earth Indian Reserve. more » |
| Olof Melin was a Swedish colonel and the creator of Melin Shorthand, the dominant shorthand... more » |
| Omar S. Knedlik, was an American inventor and businessman. He was best known as the inventor of... more » |
| Omer T. Inan is Assistant Professor of Bioengineering in the School of Electrical and Computer... more » |
| Ōno Kōjin. Toy designer employed by Takara since 1980. Mr. Ōno's early designs included the... more » |
| Orlando R. Marsh was an electrical engineer raised in Wilmette, Illinois. In early 1920s... more » |
| Orville H. Carlisle, a shoe salesman in Norfolk, Nebraska invented the hobby that would become... more » |
 | Oscar Kjellberg was a Swedish inventor and industrialist. Founder of ESAB, in 1904, and... more » |
| Oscar Wirkkala was a Finnish-American logger and inventor who spent much of his life in the... more » |
 | Oskar Messter was a German inventor and film tycoon in the early years of cinema. His firm... more » |
 | Frederick Otis Barton, Jr. was an American deep-sea diver, inventor and actor. more » |
| Otis Frank Boykin was an African-American inventor and engineer. more » |
 | Otis Carter Formby King was a grocer and engineer in London who invented and produced a... more » |
