KO them? Fighters that moved up to heavyweight and could still KO their opponents a majority of the time. Who are they? Even if they never did offically move up, if they still KO'ed heavyweight level guys, name them. Wilde did this, or so I've heard.
Archie Moore. Knocked out some guys that went the distance with Sonny Liston. Other than that, not many. There seems to be a huge difference between a heavyweight punch and a lightheavyweight punch.
Mickey Walker (5'7," 175 Lbs) KO 1 Arthur DeKuh (6'3," 223 Lbs) 46W(32KO)+13L(3KO)+1D. 27 year old DeKuh had gone the distance with Stribling, Sharkey and Baer. Walker (167 Lbs) KO 1 Jack Gagnon (5'11," 209 Lbs) Walker (168 Lbs) KD 2 Bearcat Wright (6'1" 210 Lbs) en route to a ten round points win.
He did fight at lightheavy into 1956. Your point is well-taken though. I don't think of Patterson as a lightheavy. I think a man should reach a certain maturity, let's say 23, or maybe 25, and still be fighting at lightheavy to be considered a lightheavy at all. After all, Louis and Ali were lightheavies in the amateurs as teenagers.
Moore is certainly a good choice. He knocked out two olympic heavyweight gold medalists, Lovell and Rademacher, as well as men at one time or another ranked in the top ten heavyweights as Buddy Walker, Jimmy Bivins, Bob Satterfield, Alberto Lovell, Bob Dunlap, Phil Muscato, Bob Baker, Roger Rischer, Willi Besmanoff, James J Parker, and Alejandro Lavorante. Bob Satterfield is another who carried a dangerous punch up to heavyweight, kayoing Lee Oma, Bob Baker, Cleveland Williams and John Holman, among others.
Well, judging from things he claimed in his autobiography, I wouldn't be surprised if his water bottle was spiked with bathtub gin. The Mick was a pugnacious, rambunctious hellion, who smoked two packs of cigarettes a day. So there you have it. Nicotine, booze and broads. (Walker could have been Monzon's lifestyle role model during Carlos's career.)
Doug Jones came up from lt Heavy and an abortive shot at Harold Johnson, Ko'ed Zora Folly amongst others