What is the difference between a combination and a subcombination in patent applications?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-27 8 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 patent applications, a combination refers to an invention that incorporates multiple elements or subcombinations, while a subcombination is a part of the combination that has distinct utility on its own. The MPEP states: “A combination is an organization of which a subcombination or element is a part.” ( MPEP 806.05(a) ) For example, a bicycle (combination) consists of various parts such as wheels, frame, and handlebars (subcombinations). Each subcombination can have its own distinct utility apart from the complete bicycle. Related Rules from the Manual of Patent Examining Procedure 8 rules Collapse Requirement for Non-Distinct Inventions Not to Be Restricted MPEP 806 Prohibited Requirement for Distinct Inventions MPEP 806 Invention Distinctness Requirement MPEP 806 Permitted Restriction to One Independent Invention Is Proper MPEP 806 Invention Distinctness Requirement MPEP 806 Permitted Where Inventions Are Related But Not Distinct, Restriction Is Never Proper MPEP 806 Reasonable Number of Species May Be Claimed When Generic Claim Is Allowed MPEP 806 Permitted Allowable Claim Must Cover Reasonable Number of Species MPEP 806 Other Related FAQs 5 FAQs Collapse What are the criteria for establishing distinctness between a combination and subcombination? What is the difference between a combination and a subcombination in patent law? Can a patent application contain both combination and subcombination claims? How do patent examiners use the concept of combinations and subcombinations in their work? How does the examiner determine if there is a serious search burden in combination-subcombination cases?