What are the things that Albert Einstein invented?

Answer 1

Einstein did not "invent" anything, in the sense that he developed a useful object. He was, instead, a theoretical physicist, who developed laws of nature. By statute, these can not be patented for commercial use.

Answer 2

Albert Einstein did not invent any specific tangible objects. He was a theoretical physicist who developed the theory of relativity, which revolutionized our understanding of space, time, and gravity. His work also contributed to the development of quantum theory.