Numerous volumes; Henry III, 1216-1272 (6 v.) Edward I, 1272-1307 (4 v.) Edward II, 1307-1327 (5 v.) Edward III, 1327-1377 (16 v.) Richard II, 1377-1399 (6 v.) Henry IV, 1399-1413 (4 v.) Henry V, 1413-1422 (2 v.) Henry VI, 1422-1461 (6 v.) Edward IV, Henry VI, Edward V, Richard III, 1461-1485 (3 v.) Henry VII, 1485-1509 (2 v.) Edward VI, 1547-1553 (6 v.) Philip and Mary, 1553-1558 (4 v.) Elizabeth I, 1558-
A searchable version of most (but not all) volumes is available, courtesy of Prof. G.R. Boynton and the University of Iowa Libraries, at Calendar of Patent Rolls Search
