If it isn't the exact same thing, it's really close.
Simpsons Black Malt. 500-600° L. Made by roasting white malt at a higher temperature than that used to produce Chocolate Malts. Gives a sharp flavor and black color. Used in sweet stout and many dark beers. This malt adds a lot of color and should be used in moderation.
American Black Patent Malt 500 lovibond, Briess Malting
A highly roasted malt, it is the predominant adjunct grain used in making Porters. It aids in achieving deep color and improves head retention. In small amounts, it adds a smoky/toasted character. When used in larger quantities it will impart a burnt, charcoal character.