Fish & Richardson said Monday that it has raised pay for first-year associates in all of its offices — including its D.C. office — to $160,000. In doing so, the Boston-based intellectual-property powerhouse becomes the first in the District to bump first-years’ pay by $25,000, up from $135,000.

Fish & Richardson jumped into an associate-salary war that began Jan. 22 when New York firm Simpson Thacher & Bartlett announced it would increase its first-year associate salaries after a stellar financial year.