What is the correspondence address used for patent owners in ex parte reexamination?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-30 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. In ex parte reexamination, the correspondence address for the patent owner is typically the official correspondence address of record in the file of the patent being reexamined. The MPEP section 2264 provides guidance on this: “Usually, the official correspondence address of the patent owner, which is of record in the file of the patent, is the mailing address of the patent owner’s legal representative.” If there is no official correspondence address on record, the USPTO may use the mailing address of the patent owner as the correspondence address. In cases with multiple patent owners, the Office may use the mailing address of the first named patent owner of record as the correspondence address. It’s important to note that the USPTO will not engage in double correspondence with more than one patent owner, as stated in 37 CFR 1.33(a) . Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Mailing Address for First Named Owner MPEP 2264 Permitted No Double Correspondence with Multiple Owners MPEP 2264 Mailing Address as Correspondence When No Official Address MPEP 2264 Permitted Mailing Address for Third Party Requester MPEP 2264 Permitted Patent Owner's Legal Representative Mailing Address Required MPEP 2264 Time for Patent Owner Action in Ex Parte Reexamination MPEP 2254 Time for Patent Owner Action in Ex Parte Reexamination Cannot Be Extended Beyond Two Months Without Sufficient Cause MPEP 2266 Copies of Office Actions Available Online MPEP 2264 Permitted Reexamination Forms Must Include Identifying Information and Correspondence Address MPEP 2264 Permitted Transmittal Form PTOL-465 Required for Third Party Requester Office Actions MPEP 2264 Required Other Related FA...