https://whimsical.com/en-XaBqhDgEgG2ryXhMWUz66g
PatentPia provides a list of "competitor companies from a patent perspective," which is a composition of companies with high patent relevance by company, and an analysis of comparisons between them.
The competitor companies in the patent view are composed of a comprehensive set of i) high technology same-similarity of patents in possession, ii) high company size similarity, and iii) other same-similar attributes.
The technical same-similarity of patent portfolios in possession is measured using the CPC patent classification, which is the patent technology classification assigned to each patent. Between company i and company j, the higher the match of the set of CPC patent classifications corresponding to each company's patents in possession, the more competitor companies company i and company j are from a patent view.
In addition, the higher the similarity of the set of keywords contained in the patents of Company i and Company j, the more Company i and Company j are competitor companies from the patent view.
Even if there is a high degree of technology match between Company I and Company J, it is difficult for them to be competitor companies if the gap in their weight class is too large. Therefore, the smaller the gap in their weight class, as measured by the size of patents in possession, the more likely they are to be competitor companies from a patent view.