Charles H. Duell was the Commissioner of US patent office in 1899. Mr. Deull's most famous attributed utterance is that "everything that can be invented has been invented." Most patent attorneys have also heard that the quote is apocryphal. In his 1989 article, Samuel Sass traced the quote back to 1981 book titled "The Book … Continue reading Tracing the Quote: Everything that can be Invented has been Invented