Foley & Lardner·IP / PATENT
USPTO relaxes Markush grouping requirements for functional claims
The USPTO's new "informative" decision allows Markush groups to include structurally diverse species that perform similar functions, potentially broadening claim options for patent applicants.
markush-claimspatent-prosecutionuspto-guidancefunctional-claimssubgenus
Read the original firm alert → Thursday, September 3, 2026