I can&#39;t read this cover of a precedent case
<p>Embarrassing, I have a very simple question. I can't interprete this cover of a precedent case because I am an English learner. Please give me your help. In the middle of the image I attached below, </p>

<p>"Louis J. Hoffman, Hoffman Patent Firm of Scottsdale, Arizona, argued for plaintiff-appelle. On the brief was Lan B Crosby, Susman Godfrey LLP, of Seattle, Washington." </p>

<p>In this sentence, Is Louis the plaintiff-appelle? or... Louis is the lawyer?? </p>

<p><a href="https://i.stack.imgur.com/8JmxN.jpg" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/8JmxN.jpg" alt="enter image description here"></a></p>

<p>Hoffman and Crosby are both lawyers. The plaintiff-appellee was DDR Holdings LLC. An appellate case involves both a written brief and an oral argument before the court. Hoffman did the oral argument, and Crosby worked on the brief (Hoffman likely also worked on the brief).</p>

precedent