David Ladd

David Lowell Ladd (September 18, 1926 – October 12, 1994) was a former Commissioner of Patents and Register of Copyrights in the United States, the first (and currently only) individual to serve in both offices.

Ladd was born in Portsmouth, Ohio and attended the University of Chicago, where he received a bachelor of arts degree and, later, a degree in law. In 1961, Ladd was appointed to lead the U.S. Patent Office by President John F. Kennedy. At age 35, he was the second youngest man to ever hold the position.

As Commissioner of Patents, Ladd led a comprehensive reorganization of the Office and was present during the Office's 125th anniversary and granting of patent number 3,000,000.

Ladd was succeeded by Donald Curran in 1985 and returned to private practice at Wiley, Rein & Fielding. He retired in 1987 and died in his home in Alexandria, Virginia in 1994, survived by his wife.