Napa Valley vintner Shafer Vineyards recently filed suit against Angwin, California winery owner, Mike Beatty (doing business as Howell Mountains Vineyards) for use of the term Hillside Select on its wine. Shafer Vineyards—who according to the USPTO database registered the mark Hillside Select in January 1990—alleges Mr. Beatty used the Napa Valley vintner’s registered…