Science Story : Did Einstein own the patents for REFRIGERATOR?

All of us know Albert Einstein for his magnificent theories of Special Relativity and General Relativity. He is best known for his equation E=mc2 . But his contributions extend to wider range topics, like Quantum Physics, Brownian Motion and stimulated Emission, which led to the development of Laser. The lesser known and unpopular is his work with Leo Szilard to develop an energy efficient absorption refrigerator with no moving parts. It is called "The Einstein-Szilard or Einstein Refrigerator". So here's the story behind it.

From 1926 until 1934 Einstein and Szilárd collaborated on ways to improve home refrigeration technology. The two were motivated by contemporary newspaper reports of a Berlin family who had been killed when a seal in their refrigerator failed and leaked toxic fumes into their home. Einstein and Szilárd proposed that a device without moving parts would eliminate the potential for seal failure, and explored practical applications for different refrigeration cycles. Einstein used the experience he had gained during his years at the Swiss Patent Office to apply for valid patents for their inventions in several countries, the two eventually being granted 45 patents in their names for three different models.

It has been suggested that most of the actual inventing was performed by Szilárd, with Einstein merely acting as a consultant and helping with the patent-related paperwork, but others assert Einstein labored over the project.

The refrigerator was not immediately put into commercial production, the most promising of their patents being quickly bought up by the Swedish company Electrolux. Einstein and Szilard earned $750 (the equivalent of $10,000 today). A few demonstration units were constructed from other patents.

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