Location History:
- Cincinatti, OH (US) (2011)
- Cincinnati, OH (US) (1984 - 2021)
Company Filing History:
7 out of 7 
6 out of 31 
4 out of 4 
Years Active: 1984-2021
Title: Innovations by Allen H Rau: A Pioneer in Pharmaceutical Patents
Introduction
Allen H Rau is a notable inventor based in Cincinnati, OH, with a remarkable portfolio of 18 patents. His work primarily focuses on advancements in pharmaceutical formulations, particularly in the development of tablets and effervescent products. Rau's innovative contributions have significantly impacted the industry, enhancing the quality and effectiveness of various medicinal products.
Latest Patents
Among his latest patents, Rau has developed tablets with improved friability. These tablets are prepared using friability reducing agents, which make them more resistant to breakage or crumbling while maintaining satisfactory hardness. The agents include low molecular weight polyethylene glycol and similar compounds that exhibit at least three percent hydroxide moieties and a water solubility of at least eighty percent in room temperature water. The resulting tablets can incorporate an active agent and excipient of nearly any type, with a friability reducing agent concentration of about 0.1 to 0.5% by weight. These tablets demonstrate a hardness of at least eighty percent of those prepared without the friability reducing agent.
Another significant invention by Rau is the creation of effervescent tablets and granules. This innovation provides a solid form that dissolves in cold water quickly enough to satisfy consumers while retaining visual interest during the effervescent reaction. The effervescent particles are designed to be dense enough to slow down dissolution but small enough to dissolve within 30 to