(US, legal) Any of the functionally equivalent chemical entities referenced in a Markush claim.
(US, legal) Any of the functionally equivalent chemical entities referenced in a Markush claim.
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(US, legal) A patent claim that identifies multiple functionally equivalent chemical entities allowed in one or more parts of a compound.
(organic chemistry, countable) The presence of a functional group.
(legal, US) A legal rule in most patent systems that allows a court to hold a party liable for patent infringement when the infringing device or process does not fall within the literal scope of a patent claim, but nevertheless is equivalent to the claimed invention.
(US, legal) The combination, in a patent claim, of a novel device with conventional elements in a conventional manner.
(US, legal, uncountable) In trademark law, the tendency of a product design to serve a function other than the identification of the product, preventing that design from being protected as a trademark.