Question: What firm founded in 1915 did work on the the tallest building in the Western Hemisphere

<P0-S0> U.S. Bank Tower, formerly Library Tower and First Interstate Bank World Center, is a 1018 ft skyscraper at 633 West Fifth Street in downtown Los Angeles, California. <P0-S1>  It is the third tallest building in California, the second tallest building in LA, the fifteenth tallest in the United States, the third tallest west of the Mississippi River after the Salesforce Tower and the Wilshire Grand Center, and the 92nd tallest building in the world, after being surpassed by the Wilshire Grand Center. <P0-S2>  Because local building codes required all high-rise buildings to have a helipad, it was known as the tallest building in the world with a roof-top heliport from its completion in 1989 to 2004 when Taipei 101 opened. <P0-S3>  It is also the third tallest building in a major active seismic region; its structure was designed to resist an earthquake of 8.3 on the Richter scale. <P0-S4>  It consists of 73 stories above ground and two parking levels below ground. <P0-S5>  Construction began in 1987 with completion in 1989. <P0-S6>  The building was designed by Henry N. Cobb of the architectural firm Pei Cobb Freed & Partners and cost $350 million to build. <P0-S7>  It is one of the most recognizable buildings in Los Angeles, and often appears in establishing shots for the city in films and television programs. <SEP> <P1-S0> One World Trade Center (also known as 1 World Trade Center, 1 WTC or Freedom Tower ) is the main building of the rebuilt World Trade Center complex in Lower Manhattan, New York City. <P1-S1>  The supertall structure has the same name as the North Tower of the original World Trade Center, which was destroyed in the terrorist attacks of September 11, 2001. <P1-S2>  The new skyscraper stands on the northwest corner of the 16 acre World Trade Center site, on the site of the original 6 World Trade Center. <P1-S3>  The building is bounded by West Street to the west, Vesey Street to the north, Fulton Street to the south, and Washington Street to the east. <P1-S4>  It is the tallest building in the Western Hemisphere, and the sixth-tallest in the world. <SEP> <P2-S0> This list of tallest buildings in Detroit ranks skyscrapers and high rises in the U.S. city of Detroit, Michigan by height. <P2-S1>  The tallest skyscraper in Detroit is the 73-story Detroit Marriott at the Renaissance Center, which rises 727 ft along Detroit's International Riverfront. <P2-S2>  It is the tallest building in the state of Michigan, the 97th-tallest building in the United States, and the second tallest hotel building in the Western Hemisphere. <P2-S3>  Another famous skyscraper is One Detroit Center, which stands as the 2nd-tallest building in the city and the state. <SEP> <P3-S0> Jaros, Baum & Bolles (JB&B) is an American MEP (Mechanical, electrical, and plumbing) and building systems engineering firm founded in 1915 by Alfred L. Jaros, Jr. and Albert L. Baum. <P3-S1>  The firm is best known for high-rise projects, including One World Trade Center and Hudson Yards in New York City, the Sears Tower in Chicago and the Bank of China Tower in Hong Kong.