@article{202205.0054, doi = {10.20944/preprints202205.0054.v1}, url = {https://doi.org/10.20944/preprints202205.0054.v1}, year = 2022, month = {May}, publisher = {Preprints}, author = {Massimo Barbieri}, title = {Patent Prior Art Searches: Basic Principles and Strategies}, journal = {Preprints} }