Today in 1976, US Patent 3998761 A was issued, an invention of Herbert H. Gary, William Bess, and Frederick Hubner, assigned to the Bristol-Myers Company, for their “Shampoo Compositions Containing Beer Solids.” Here’s the Abstract, along with some additional claims:

Shampoo compositions containing beer solids.

What is claimed is:

1. A shampoo composition suitable for conditioning hair comprising at least one detergent and a waste liquid beer sludge concentrate distributed in an aqueous medium, the beer solids contained in said composition comprising from about 4% to 20% by weight based on the total weight of the shampoo composition and wherein said detergent comprises about 10 to 20% based on the total weight of the composition.

2. A shampoo composition according to claim 1 wherein the beer solids contained in said composition range from about 6% to 9% by weight based on the total weight of the shampoo composition.

I’m not sure if this is the shampoo that resulted from this patent, but this was sold in the 1970s.