Joice Sandra Klitzke has been granted 2 US patents while listed as an inventor at Shell Usa. The first was granted in 2022 and the most recent in May 2025. Joice Sandra Klitzke ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list Joice Sandra Klitzke in Eindhoven, NL.