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With an increasing number of overlapping patents between USPTO and EPO after 2013, the functions of those technologies mentioned above become similar.
Corporate giants like Panasonic, Toyota and Hitachi are more likely to pursue defensive intellectual property strategies that involve taking out multiple, overlapping patents to create a "thicket" around technologies to lock out competitors, inflating the overall patent count.
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It then sues perhaps a dozen companies that use technology potentially overlapping the patent.
In recent years, firms have increasingly contributed to and been confronted with a patent landscape characterized by numerous but marginal inventions, overlapping claims and patent fences.
For the subsets in columns 2 and 3 the patent: journal ratio is 2.28 1 with just under 6% of patent compounds overlapping with those appearing in journals, presumably subsequent to the patent publication, although some could be non-proprietary bench-marking compounds.
These infringement risks are also still very clear for PCR-based or enrichment-capture strategies, which directly overlap with these patents by enriching for a molecule that contains BRCA1 or the targets of other patented genes.
When studying the complementarity between public and commercial databases of bioactive compounds Southan et al. [12] found that in the largest commercial database that was included in their study only around 6% of compounds from patents overlapped with those appearing in scientific journals.
A later patent that does not expire until 2011 is invalid, Apotex argues, because it overlaps the earlier patent.
Samsung wanted the document included to see if there is an overlap in patents included in its case against Apple and in the Apple-HTC agreement.
This paper develops a Schumpeterian growth model with overlapping intellectual property rights to analyze the effects of patent protection that features two policy instruments: patent breadth and the profit-division rule between sequential innovators.
We also examine the association between used and unused patents and their characteristics such as family size, scope, generality and overlapping claims, technology area, type of applicant, and the competitive environment from where these patents originate.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com