In a State-of-the-Art search, while it is important to analyze the references, it is also essential to evaluate related inventors and companies.
Researchers traditionally adopted an approach that is similar to the academic one by starting from the most-cited references.
If significant references were found, researchers may then have been able to find more references to the same inventors and companies.
In a more commercialized and competitive field, practitioners may focus on the latest activities and publications by the leading players.
It should be noted that it usually takes a considerable effort to summarize the individually collected references and compare them.
What’s more, both the citation data and the latest publications may have their respective biases: patent citation data, for example, is not as regulated as academic papers (except for the Information Disclosure Statement, there are almost no formal rules or penalties for patent citations, and the citation data is also limited to the search capability of applicants and examiners).
Patentcloud’s Patent Value Ranking can serve as a filter to separate the signal from the noise and provide a quick evaluation of inventors and applicants.
For example, for evaluating the main applicants and inventors related to the OLED display cell optical design electroluminescence (EL) with color filter (CF) solution in the last 5 years, we can examine the distribution of the Patent Value Ranking for each applicant and inventor.
Although there may be a higher number of key inventors in SEMICONDUCTOR ENERGY LABORATORY, after looking at the Patent Value Ranking distribution it becomes clear that either APPLE, QD VISION, or UNIVERSAL DISPLAY may have key inventors with patents of higher value: