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Waldo Semon
American inventor (1898-1999) · United States · On the map · Scientists · Died at 100
Waldo Lonsbury Semon was an American inventor born in Demopolis, Alabama. He is credited with inventing methods for making polyvinyl chloride useful.
Waldo Semon is read about 11 times a day, in 10 languages.
A typical day, 30 days to 10 October 2026
The middle day of the days counted, so one week of news cannot move it. The line under it is the last 120 days, one point a day.
Something wrong?A life in dates
1999Died26 May 19991995National Inventors Hall of FameAward1965Golden Plate AwardAward1964Elliott Cresson MedalAward1944Charles Goodyear MedalAward1898Born10 September 1898
Awards
About this person
Country
United States
Category
Scientists
Type
Scientist
Status
Deceased
Dates
Lived 1898 to 1999 · aged 100
The same award as Waldo
Herman F. MarkBoth received Charles Goodyear Medal
Joseph DeSimoneBoth received Charles Goodyear Medal
Otto BayerBoth received Charles Goodyear MedalMelvin MooneyBoth received Charles Goodyear Medal
Paul FloryBoth received Charles Goodyear Medal
Howard Ensign Simmons, Jr.Both received Charles Goodyear Medal
Joseph DeSimoneBoth received Charles Goodyear MedalOtto BayerBoth received Charles Goodyear MedalMelvin MooneyBoth received Charles Goodyear MedalPaul FloryBoth received Charles Goodyear MedalHoward Ensign Simmons, Jr.Both received Charles Goodyear Medal