Eventually, people came to appreciate the ease of pre-sliced bread, and by 1928, word spread and sales increased dramatically. From 1927 to 1936, Rohwedder obtained seven more patents relating to methods of slicing bread and eventually sold his patent rights to Iowa company, Bettendorf.
Yes, a food product and/ or its recipe can be patented.
Special Patent. 12.7% Protein | .50% Ash | Malted, Enriched. This "short patent" is a classic spring wheat bread flour milled from the center of the wheat kernel resulting in high protein and low ash.
Special Patent is a bread flour, about 12.5% protein. Use it for breads, pizza, rolls, yeasted pastries like croissants, babkas and danish.