- Associated Press - Wednesday, September 24, 2014

MIAMI (AP) - A South Florida dermatologist credited with developing the first baldness remedy recognized by the U.S. Patent and Trademark Office has died. He was 80.

Dr. Guinter Kahn’s daughter Michelle said her father died Sept. 17 at a Miami hospice.

Kahn’s name was added to the patent for minoxidil in 1986 after a 15-year legal struggle with Upjohn Co. Minoxidil is the active ingredient in Rogaine.

Upjohn originally synthesized minoxidil to treat high blood pressure in the early 1960s. When Dr. Charles Chidsey - one of the company’s consultants working at the University of Colorado’s medical school - noticed the drug stimulated hair growth, Chidsey went to Kahn and his medical assistant, Dr. Paul Grant. Kahn was running the school’s dermatology department at the time.

The Miami Herald (http://goo.gl/KZJqqt ) reports that Kahn and Grant eventually developed a topical solution for minoxidil in 1971.

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Information from: The Miami Herald, http://www.herald.com

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