I know we see the logo during the ransom scene in IM1, where Tony is bound, head covered. It's the backdrop of the scene on a red canvas or curtain material. Can't recall if it's anywhere else. A logical place might be in the tents when Stane comes to visit, to steal the Mark 1, but I can't say I recall with certainty. 
One would assume that their logo is known(within the MCU prior to IM showing up), has been known, which leads to the theory Killian co-opted it. Gave it a face as he noted.
	
		
			
		
		
	
				
			One would assume that their logo is known(within the MCU prior to IM showing up), has been known, which leads to the theory Killian co-opted it. Gave it a face as he noted.
				
 It would probably take several of them to actually kill him, but still... 
 Who's to say someone like Stark couldn't have copied the regulating agent?