My B/F Search widget provides you with a faster prior art search result which is also 30% better as compared with conventional prior art search results.
Search through 90 million patent documents worldwide, containing information about inventions and technical developments from 1836 to today.
Backward/Forward Search Course
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Unlock the B/F Search Premium features
- Remove input limit of maximum 3 patents
- Remove output limit of maximum 10 patents
- Premium support and features request
"With Patents Reference Search:
We get about 30% of the search result better than before
With this approach, we have 100% of the search using “bfsearch” quasi certified.
I like that."
We get about 30% of the search result better than before
With this approach, we have 100% of the search using “bfsearch” quasi certified.
I like that."
Bernhard Brabetz
Patent Search Expert
Frequently Asked Questions
We are using European Patent Office database through Espacenet Open Patent Services (OPS). Espacenet OPS offers free access to more than 90 million patent documents worldwide, containing information about inventions and technical developments from 1836 to today.
Performing a “Normal Search” with the B/F Search Widget will retrieve a list of all citations of the patents from the middle column “Search List”. An “Advanced Search” will retrieve also a list of all citation of the INPADOC patent family of the patents from “Search List”.
You can export the results in two formats: text and Patent Picker® Lite (PDF) format.
- Text format is a list of patents separated by new line.
- Patent Picker® Lite format is a PDF file with one patent per page displaying the most important attributes of a patent like title, abstract text, picture and other attributes of the patent.