In Franchise Tax Bd. of Cal. v. Hyatt, Justice Breyer spoke uninterrupted for 34 lines about who-knows-whats, stretching from page 41-43. He actually asked for “two minutes on what’s bothering me.”
This is fairly mild by Breyer’s usual standards. In Bond, he spoke for 38 lines uninterrupted. 36 Lines in FERC v. Electric Power Supply Association. He went 32 lines in Medtronic v. Boston Scientific Corp. He had 35 lines in EPA v. EME Homer. Alas, only 27 lines in Zivotofsky.
Fittingly, Chief Justice Roberts earned his title on SGB.
H/T Sean Marotta