From our friends at Westlaw Edge:
"Is anything similar out there?" It's one of the first questions you ask in patent research.
To answer this question, you would likely start by performing a wide-reaching search in the largest bibliographic patent collection available—namely, INPADOC—long before you begin your detailed analysis. Maintained by the European Patent Office (EPO), INPADOC is the largest single collection of patent bibliographic data. It contains