Glenn W. Kilpatrick, 57, associate director of the Food and Drug Adminstration's division of federal-state relations since 1970, died Sunday at Montgomery General Hospital. He had a heart ailment.

Mr. Kilpatrick joined the FDA in 1960 after working for seven years as director of foods and drugs and weights and measures for the state of Utah. Earlier he had been associated with the private food industry.

He was born in Salt Lake City and attended the University of Utah before entering the Army Air Corps in 1943. He was a pilot in the China-Burma-India Theater in World War II and was awarded the Distinguished Flying Cross and the Air Medal.

Mr. Kilpatrick, who lived in Rockville, had received the Harvey W. Wiley Award of the Associated Food and Drug Officials of the U.S., the FDA's Award of Merit and the Distinguished Service Award of the National Association of Boards of Pharmacy.

He is survived by his wife Joy, and two sons, Glenn W. Jr. and Terry L., all of Rockville; his mother, Idella Kilpatrick, three brothers, Wayne, Milton and Jay, and three sisters, Lorraine McBride, Maxine O'Brien and Barbara Searle, all of Salt Lake City, and four grandchildren.

The family suggests that expressions of sympathy be in the form of contributions to the Children's Hospital National Medical Center.