What is the difference between a product-by-process claim and a claim with both product and process elements?
According to MPEP 2173.05(p), there is a key difference between these two types of claims: Product-by-process claim: This is a product claim that defines the product in terms of the process used to make it. It is considered proper and is not inherently indefinite. The MPEP states, “A product-by-process claim, which is a product claim…
Read MoreAre there any exceptions to the rule against mixing product and process elements in a single claim?
While the general rule discourages mixing product and process elements in a single claim, the MPEP 2173.05(p) does provide some nuance. It states: “In contrast, when a claim recites a product and additional limitations which focus on the capabilities of the system, not the specific actions or functions performed by the user, the claim may…
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