What are declarations and re-declarations of interferences in patent law?

Declarations and re-declarations of interferences are formal proceedings in patent law to determine priority of invention between two or more parties claiming the same patentable invention. According to MPEP 1002.02(g):

“3. Declarations and re-declarations of interferences. 37 CFR 41.203.”

These declarations are decided by Administrative Patent Judges as outlined in 37 CFR 41.203. The process involves determining whether an interference should be declared or re-declared based on the claims and specifications of the involved applications or patents.

To learn more:

• Patent Interferences
• Priority of Invention
• Administrative Patent Judges