Prior art definition: Top Countries

United States of America  1. An invention which was known or used by others in US, or patented or described in a printed publication in US or a foreign country, before the invention by the applicant; 2. An invention which was patented or described in a printed publication in US or a foreign country or in public use or on sale in US, more than one year before the filing date; 3. An invention abandoned by the applicant; 4. An invention which was patented, or was...