Nefaur Khandker has been granted 9 US patents while listed as an inventor at Block. The first was granted in 2015 and the most recent in February 2025. Nefaur Khandker ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Nefaur Khandker in San Francisco, CA, US.