How does common ownership affect double patenting rejections?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 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. Common ownership plays a significant role in double patenting rejections: Double patenting can occur between applications/patents with the same inventive entity, at least one common inventor, or common ownership Common ownership can be used to disqualify a reference as prior art under certain conditions For nonstatutory double patenting, a terminal disclaimer requires common ownership of the application and reference patent/application As stated in MPEP 804 : “Some commonality of inventorship or (deemed) ownership must exist between two or more patents or applications before consideration can be given to the issue of double patenting.” Additionally, for AIA applications: “Subject matter in a commonly assigned/owned patent or application may be excepted as prior art under 35 U.S.C. 102(a)(2). See 35 U.S.C. 102(b)(2)(C).” Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Commonality of Inventorship or Ownership Required for Double Patenting Consideration MPEP 804 Required Schneller Rule for Nonstatutory Double Patenting Rejections MPEP 804 Permitted Same Inventive Entity for Double Patenting MPEP 804 Permitted Prior Art Not Supporting Double Patenting Rejection When Subject Matter Not Claimed MPEP 804 Requirement for Prior Art Under 35 U.S.C. 102 MPEP 804 Required Nonstatutory Double Patenting Rejection Cannot Use Reference Exempted Under 102(b)(2)(C) MPEP 804 Prohibited Nonstatutory Double Patenting Rejection Requires Director Approval MPEP 804 Nonstatutory Double Patenting Rejections Based on Schneller Rare MPEP 804 Requirement for Nonstatutory Double Patenting with Common Ownership MPEP 804 Types of Double Patenting Rejections MPEP 804 Other Related FAQs 5 FAQs C...