What are Markush groupings and how do they affect unity of invention?
What are Markush groupings and how do they affect unity of invention? Markush groupings are a way of claiming alternatives in patent applications, which can have implications for unity of invention. MPEP 1850 provides guidance on this: “Alternative forms of an invention may be claimed either in a plurality of independent claims, or in a…
Read MoreCan alternative forms be used instead of an Application Data Sheet?
Yes, in certain circumstances, alternative forms can be used instead of an Application Data Sheet (ADS) to provide some of the required information: Patent Law Treaty Model International Forms can be used for certain information. The Patent Cooperation Treaty Request Form can be used in some cases for national stage applications. 37 CFR 1.76(f) states:…
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