How are chemical formulas treated in patent claims?

Chemical formulas in patent claims are generally treated as definite and non-speculative, unless there is evidence to the contrary. The MPEP 2173.05(t) states: “Claims to chemical compounds and compositions containing chemical compounds often use formulas that depict the chemical structure of the compound. These structures should not be considered indefinite nor speculative in the absence…

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How should chemical formulas be presented in a PCT application abstract?

How should chemical formulas be presented in a PCT application abstract? Chemical formulas in PCT application abstracts require specific formatting. The MPEP 1826 provides guidance on this: “Chemical formulas and tables may be included in the abstract. The abstract may not include other drawings or flow sheets.” When including chemical formulas in your abstract: Ensure…

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