Analysis of backward citations – part 1

Backward citations have long been recognized as a rich and potential source for the innovation and technological evolution, which in turn brings value to your business.

To better understand the importance of backward citations, Stellarix conducted a short study on it. We took only US granted patents into account which were published between period 2005 – 2009 and for each patent number of backward citations (including patent and non patent) were calculated.

Following table is an overview on the type of the patents which were granted over last 5 years. In last 5 years, we observed that it was year 2006 when most number of patents was granted.

Just an addition to the overview of the study, following table discloses the total number of citations associated with patent:

However, we understand that it is not necessary that every patent will have backward citations. If the technology of the patent is very new, it is likely that examiner may not found any prior art during the examination process. There are many patents granted every year which does not have a single backward citation.

We identified those patents getting no citations and put the number in the following table:

Many experts believe that a patent having less number of backward citations is a strong or good patent as compared to a patent having more number of backward citations.

But by only looking at the above table and not analyzing manually, can we say these patents are of excellent quality, very strong and are technology breakthrough patents?

I will continue to share my further analysis in future posts!



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