Patriarca made his debut with figurative art, but he could not do without embracing the avant-gardes of that time and experimenting with new stylistic principles.

His paintings are stylized, minimalist in the stroke, the faces anonymous, without noses, because the artist expressed that tendency to go further.

Since 1954 he participated in exhibitions as Rome Quadriennale, the National Landscape Award "Autostrada del Sole"[2] at Palazzo delle Esposizioni in Rome from 30 November 1961 to 7 January 1962, together with artists such as Giuseppe Capogrossi, Giorgio de Chirico, and at the Biennial of Art of Rome in 1968, together with artists such as Alberto Burri, Ugo Attardi, and Fausto Pirandello.

In June 1998, ten years after his death, an anthological exhibition was dedicated to him at the historic L'Agostiniana Gallery.

His works are shown at the Municipal Museum in Noto, at the Municipal Art Gallery in Celano, at Monte dei Paschi di Siena Foundation, at the Churches of Santa Maria del Popolo, at the Civic Museum in Alatri, Rovereto and Spoleto.