Daniel Riess handled many cases as a patent attorney for nearly 50 years, but by far his best-known work was when he represented the Keebler Co. in what came to be known as the "soft cookie wars."
Procter & Gamble Co. alleged Keebler and two other cookie-makers, Frito-Lay and Nabisco Brands, infringed P&G's 1984 patent on "dual-textured cookies," which were crisp outside and soft and chewy inside. P&G marketed the cookies under its Duncan Hines brand; Keebler's version is called Soft Batch.
Riess and many other lawyers spent years on the case until the suits were settled in September 1989, with Keebler and the other two companies paying P&G $125 million.
John Alex, a partner in what is now the Cook Alex law firm, called it "one of the most major patent cases of all time."