Patent Mass Aggregators

There has been a great deal of news recently about large patent portfolio acquisitions, such as Google’s $12.5 billion acquisition of Motorola Mobility that includes a portfolio of more than 17,000 patents and patent applications, or Apple, Microsoft, and RIM pooling resources to acquire Nortel’s 6,000 patent portfolio for $4.5 billion.

In a new study with results recently published in the Stanford Technology Law Review, Tom Ewing and Robin Feldman, law professor at the University of California-Hastings, discuss specifically the case of Intellectual Ventures and patent mass aggregators.  Intellectual Ventures has become one of the top 5 owners of U.S. patents.  The authors estimate that their portfolio includes 30,000-60,000 patents worldwide.  Their study recites potential positive and negative effects of such large numbers patents being owned by a single entity.

An Abstract of their article is below.  The complete article is available at:

The Giants Among Us

Tom Ewing & Robin Feldman

2012 Stanford Technology Law Journal 1


The patent world is undergoing a change of seismic proportions. A small number of entities have been quietly amassing vast treasuries of patents. These are not the typical patent trolls that we have come to expect. Rather, these entities have investors such Apple, Google, Microsoft, Sony, the World Bank, and non-profit institutions. The largest and most secretive of these has accumulated a staggering 30,000-60,000 patents.

Investing thousands of hours of research and using publicly available sources, we have pieced together a detailed picture of these giants and their activities. We consider first the potential positive effects, including facilitating appropriate rewards for forgotten inventors, creating a market to connect innovators with those who can manufacture their inventions, and most important, operating as a form of insurance – something akin to an Anti-Troll defense fund.

We turn next to the potential harmful economic effects, including operating as a tax on current production and facilitating horizontal collusion as well as single firm anticompetitive gamesmanship that can raise a rival’s costs. Most important, we note that mass aggregation may not be an activity that society wants to encourage, given that the successful aggregator is likely to be the one that frightens the greatest number of companies in the most terrifying way.

We argue that mass aggregators have created a new market for monetization of patents. It is vast, rapidly growing, and largely unregulated. We conclude with some normative recommendations, including that proper monitoring and regulation will require a shift in the definition of markets as well as a different view of corporations and their agents.

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One Response to “Patent Mass Aggregators”

  1. Online Global Week in Review 3 Feb 2012 from IP Think Tank Says:

    [...] Patent aggregators – The giants among us – or US? (IP finance) (Inventive Step) [...]

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