The story
History
In 1892, James Dewar, a Scottish-born scientist, working at Cambridge University, invented the vacuum-insulated flask, a scientific vessel for storing liquefied gases. It was not a household item fit for everyday use like carrying warm coffee. In 1903, the German glass blower Reinhold Burger received a German patent for an isolating vessel for everyday use. In 1904, Burger registered the trademark Thermos® for his patent. In 1906, the company Thermos GmbH was formed by Burger with Albert Aschenbrenner and Gustav Robert Paalen. The production of Thermos-branded bottles in the United States was based on US patent 13,093 by Burger and Aschenbrenner.
The vacuum flask is today commonly called the Dewar flask among chemists in recognition of its inventor, though he did not register a patent or trademark for his invention. When Burger and Thermos GmbH did so, Dewar sued, but lost his court case to claim intellectual property rights to the invention.
Historical importance
Thermos products made a major impact in the 1950s and sold over 2 million units. In 2004, the Smithsonian Institution museum featured Thermos products as part of its "Taking America to Lunch" retrospective of lunch kits from the 1880s to the 1980s.
From Wikipedia’s article on Thermos LLC, shared under CC BY-SA 4.0.4