Several catalysts have been successfully patented, contributing significantly to various industries. Examples include:
1. Ziegler-Natta Catalysts: Used in the polymerization of olefins to produce polyethylene and polypropylene. 2. Metallocene Catalysts: Known for their use in producing high-performance polymers with tailored properties. 3. Enzyme Catalysts: Patented for specific industrial applications, such as biofuel production or pharmaceutical synthesis.