> over 100 patents, many of which are over 100 years old Isn't the maximum "term of patent" 20 years or less? https://en.wikipedia.org/wiki/Term_of_patent htt

> over 100 patents, many of which are over 100 years old Isn't the maximum "term of patent" 20 years or less? https://en.wikipedia.org/wiki/Term_of_patent https://en.wikipedia.org/wiki/Term_of_patent