In his six-decade career with Zenith, Adler was a prolific inventor, earning more than 180 U.S. patents. He was best known for his 1956 Zenith Space Command remote control, which helped make TV a truly sedentary pastime.
In a May 2004 interview with The Associated Press, Adler recalled being among two dozen engineers at Zenith given the mission to find a new way for television viewers to change channels without getting out of their chairs or tripping over a cable.
Adler also was considered a pioneer in SAW technology, or surface acoustic waves, in color television sets and touch screens. The technology has also been used in cellular telephones.
The U.S. Patent and Trademark Office published his most recent patent application, for advances in touch screen technology, on Feb. 1."