Helmut Lothar Schroeder-Brumloop has been granted 4 US patents while listed as an inventor at Otis Elevator. The first was granted in 2014 and the most recent in September 2020. Helmut Lothar Schroeder-Brumloop ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Helmut Lothar Schroeder-Brumloop in Berlin, DE.