Peter Michael O'CALLAGHAN has been granted 2 US patents while listed as an inventor at Lonza. The first was granted in 2024 and the most recent in December 2025. Peter Michael O'CALLAGHAN ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Peter Michael O'CALLAGHAN in Visp, CH.