Master independent and distinct inventions, election with or without traverse, petition vs. appeal of restriction requirements, 35 U.S.C. 121 safe harbor, and terminal disclaimers.
ℹ️ AI-generated, model-checked practice question citing MPEP Ninth Edition, Rev. 01.2024 (Nov 2024). Each question is checked against MPEP source text by AI; always verify via the cited section.
ℹ️ AI-generated, model-checked practice question citing MPEP Ninth Edition, Rev. 01.2024 (Nov 2024). Each question is checked against MPEP source text by AI; always verify via the cited section.
ℹ️ AI-generated, model-checked practice question citing MPEP Ninth Edition, Rev. 01.2024 (Nov 2024). Each question is checked against MPEP source text by AI; always verify via the cited section.
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MPEP Chapter 800 (Restriction in Applications; Double Patenting) tests two intertwined doctrines: restriction requirements (MPEP §§ 802–823) and statutory vs. nonstatutory (obviousness-type) double patenting (MPEP § 804). For a proper restriction requirement in a 111(a) application, the examiner must establish both (1) that the inventions are independent or distinct as claimed, and (2) that there would be a serious search or examination burden if restriction were not required.
Know the procedural remedy: an applicant must always make an election in reply to a restriction requirement (even if traversing); to preserve the right to petition the Technology Center Director under 37 CFR 1.144, the election must be made WITH traverse. Restriction requirements are reviewable by petition (37 CFR 1.144), NOT by appeal to the PTAB.
For double patenting (MPEP § 804), statutory (35 U.S.C. 101 "same invention") double patenting can NEVER be overcome by a terminal disclaimer, whereas nonstatutory (obviousness-type) double patenting can be overcome by filing a terminal disclaimer under 37 CFR 1.321(c) or (d) that includes a common-ownership enforcement provision.
No. Under MPEP § 804.02, a terminal disclaimer under 37 CFR 1.321 is only effective to overcome nonstatutory (obviousness-type) double patenting—never statutory (same-invention) double patenting under 35 U.S.C. 101.
Restriction requirements are petitionable to the Director under 37 CFR 1.144 (after the examiner makes the restriction requirement final and only if the applicant originally elected with traverse), not appealable to the Patent Trial and Appeal Board.
Under MPEP § 804.01, 35 U.S.C. 121 protects a divisional application from a nonstatutory double patenting rejection over the parent or another divisional only if: (1) the PTO issued a formal restriction requirement earlier, (2) the later application is filed as a divisional (not a continuation or CIP), and (3) "consonance" is maintained with the line of demarcation set in the restriction requirement.
Read the complete statutory breakdown, exam tables, and worked MPEP rules for MPEP 800 Restriction & ODP.