Special Notice: NATIONAL AERONAUTICS AND SPACE ADMINISTRATION is seeking inquiries from companies interested in obtaining license rights to commercialize, manufacture, and market the technology of Multirotor Aircraft Noise Reduction. This technology aims to reduce the tonal noise produced by multirotor aircraft, which can effectively decrease the total noise output during flight scenarios. The technology allows for quieter take-off and landing or decreased noise in cruise, without sacrificing thrust. Interested parties can submit a license application through NASA's Automated Technology Licensing Application System (ATLAS). For more information, visit the NASA Technology Transfer Portal. No follow-on procurement is expected from this notice.