Elton H. Brown Jr., 60, a registered patent agent who was active in Lions Club affairs for many years, died of cancer Friday at his home in Hyattsville.

He was the owner of Blair and Brown, patent agents with offices in Avondale. He had joined the firm in 1972 and became owner a year later on the death of Alexander B. Blair.

Mr. Brown was the district governor of District 22-C of Lions International. He was executive officer of the 71 Lions Clubs in Washington and Montgomery, Prince George's Charles, Calvert and Saint Marys counties.

A life member of Lions International, he earlier had served as president of the Washington Host Lions Club and president of the Lions of District 22-C Eye Bank and Research Foundation.

Born in Mount Rainier, Mr. Brown attended the University of Maryland. He graduated from Fishbornes Patent Law School in Washington. He had lived in Manassas and then in Borger, Tex., returning here in 1968.

He was a Mason and member of the Eastern Star. He had served as chairman of the board of trustees of Landover Baptist Church.

He is survived by his wife, Marian Thelma, of the home; two daughters, Carol Joyce Burchard, of Silver Spring, and Joelle Marie Wills, of Fredericksburg; a son, Dr. Elton H. III, of South Hill, Va., his mother, Dixie R. Brown, of Hyattsville, and seven grandchildren.

The family suggests that expressions of sympathy may be in the form of contribution to the Lions of District 22-C Eye Bank and Research Foundation.