How should chemical formulae be included in a PCT application abstract?

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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. When including chemical formulae in a PCT application abstract, follow these guidelines: Include the chemical formula that best characterizes the invention. Choose the most characteristic formula among all formulae contained in the application. MPEP 1826 states: “ Where applicable, the chemical formula which, among all the formulae contained in the international application, best characterizes the invention. ” This means you should select the formula that most clearly represents the inventive concept. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse PCT Abstract Should Not Exceed A4 Sheet MPEP 1826 Recommended Abstract Must Accompany Patent Application MPEP 1826 Recommended Abstract Must Summarize Disclosure and Claims MPEP 1826 Required Abstract Must Summarize Disclosure and Indicate Technical Problem MPEP 1826 Required Abstract Must Be Obtained from International Bureau MPEP 1826 Permitted Sequence Listing Must Not Be Included In Both Drawings and Description MPEP 608.02(d) Abstract Must Adhere to PCT Rule 8 MPEP 1826 Required Abstract Must Summarize Disclosure MPEP 1826 Required Maximum of 150 Words for Abstract MPEP 1826 Abstract Must Be Concise Within PCT Limits MPEP 1826 Other Related FAQs 5 FAQs Collapse How should chemical formulas be presented in a PCT application abstract? What happens if an abstract is missing from a PCT application? What are the language requirements for the abstract in a PCT application? What are the restrictions on content in a PCT application abstract? What should not be included in a PCT application abstract?