Yeah, he does... he holds the trademark... which is kind of beyond me. But I've done some reading, and I read (on forums, so take it for what it's worth) that the trademark is for the outward appearance only. If they cover double whites and you decide to uncover them, then that's up to you. I hope that's how it works as I prefer SD to DiMarzio.
Block inlay Gibson ES-335, 50th anniversary American Strat, '61 RI White SG, '62 RI Relic Strat, Replica Korina Flying V, Gold Tone Paul Beard Resonator, '58 Les Paul RI, American Highway 1 Fender Strat, Breedlove Acoustic, Stonetree Joe Bonamassa Custom, HIWATT Lead 100R, Reeves Custom 30.