How is correspondence handled when multiple parties are prosecuting a patent application?

When multiple parties are prosecuting a patent application, the USPTO has specific procedures for handling correspondence. The MPEP states: “Double correspondence will still not be permitted. Accordingly, when the acceptance of such papers results in an attorney or agent and at least one applicant or owner prosecuting the application, correspondence will be mailed to the…

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What are the signature requirements for replies when multiple parties are prosecuting a patent application?

When multiple parties are prosecuting a patent application, there are specific signature requirements for replies to the USPTO. The MPEP provides clear guidance: “Each of these parties must sign all subsequent replies submitted to the Office.” The MPEP also provides examples to illustrate these requirements: “If coinventor A has given a power of attorney to…

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