Why Mesothelioma Cases Occur in Sunnyvale
Sunnyvale's asbestos legacy is dominated by Lockheed Missiles & Space Company (now Lockheed Martin Space), which operated its primary facility on a sprawling campus along Highway 101. At its peak, Lockheed employed over 25,000 workers in Sunnyvale building Fleet Ballistic Missiles (Polaris, Poseidon, Trident), satellites, and space systems. Asbestos was standard in manufacturing hangars, testing facilities, pipe insulation, thermal protection systems, and building infrastructure.
Libby-Owens-Ford (LOF) operated a glass manufacturing plant in Sunnyvale where asbestos was used in furnace insulation, molten glass handling equipment, pipe lagging, and building materials. Glass manufacturing required extreme heat, making asbestos-containing thermal insulation a standard component of the production process.
The 20-to-50-Year Latency Period
Mesothelioma has a latency period of 20 to 50 years. A worker exposed to asbestos at Sunnyvale facilities in the 1970s may only receive a mesothelioma diagnosis in 2025 or later. This is why Sunnyvale continues to produce new mesothelioma cases decades after asbestos use was restricted.
Sunnyvale's proximity to Moffett Field Naval Air Station meant numerous defense subcontractors set up operations in the city. Companies like Northrop Grumman, United Technologies, and smaller defense suppliers operated facilities where asbestos was present in manufacturing processes, building materials, and equipment insulation.
Sunnyvale's residential and commercial growth in the 1950s through 1970s also relied on asbestos-containing construction materials. Schools, shopping centers, and apartment complexes built during this era incorporated asbestos in flooring, insulation, roofing, and HVAC systems.
Sunnyvale's Asbestos Legacy by the Numbers
Lockheed employed over 25,000 workers in Sunnyvale at its peak. Libby-Owens-Ford operated glass manufacturing for decades. Numerous defense subcontractors operated throughout the city. California allows only 2 years from diagnosis to file a mesothelioma claim. Documenting your asbestos exposure history is a critical first step.

