CPC Combination Sets are groups of linked CPC symbols. Each CPC Combination Set identifies the technical features of a patent considered together. For example, a CPC Combination Set may include CPCs for the components of a new cement formulation, along with CPCs for reaction conditions for its manufacture.
Additional details about CPC Combination Sets include:
- Not all patents have CPC Combination Sets
- Patents can have one or more CPC Combination Sets
- A CPC Combination Set can have any number of members
- Patents which most frequently have CPC Combination Sets relate to polymer chemistry, preparation of organic compounds, and compositions/mixtures, including pesticides and cements