Mechanical Engineering

Free, open access resource for world wide patent research. Years of coverage vary by country.

Worldwide patent search provided by the European Patent Office (EPO). Years of coverage dependent on country.

Perform a quick search for patents (not comprehensive - if a patent is located through this search engine it is recommended you search the patent number through the USPTO or Epacenet to ensure you have the most up-to-date version.)

Official database of the U.S. Patent and Trademark Office. Full text searching from 1976-present, limited searching back to 1790.