Patent litigation costs have dropped significantly over the past few years, after a steady series of increases over the previous decade. This drop has sometimes been attributed to the use of inter partes review and to the Alice decision.
The chart below, created based on data from the AIPLAAmerican Intellectual Property Law Association, formerly the American Patent Law Association. DC-based professional organization that represents the interests of the intellectual property community, including the patent bar. Report of the Economic Survey, shows that this appears to be a reasonable explanation of what has happened.

The AIPLAAmerican Intellectual Property Law Association, formerly the American Patent Law Association. DC-based professional organization that represents the interests of the intellectual property community, including the patent bar. data illustrates the change in median cost of various forms of IP litigation over time. The blue line, representing the cost of patent lawsuits with over $25 million at risk, shows a general increase from 2005 to 2013, and then significant declines over the next two years. While IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. became available in 2012, the first impacts of IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. on litigation tactics weren’t seen until the beginning of 2013 when merits decisions in IPRs began to issue. And Alice was handed down in 2014, with a similar lag until district courts began ruling on Alice motions. The data illustrates a slower decline from 2013-2015 after IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. became available, and then a steeper decline in the 2015-2017 period with the impact of both IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. and Alice, consistent with the decline being attributable at least in part to IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. and Alice. (As IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. cost estimates are around $350,000 median cost, the increased cost required to file an IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. is more than overcome by the reductions in litigation cost—to the tune of more than $2 billion.)
However, it’s possible that the litigation cost declines seen in patent litigation could have been due to external factors unrelated to changes in the patent landscape like IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. and Alice. In order to control for this, we can compare costs to other areas of intellectual property law that haven’t seen the same major impacts. Using copyright and trademark litigation with similar amounts at risk as a control, the data illustrates that while there have been cost reductions in the 2015-2017 time frame for all three areas of litigation, the reduction has been most pronounced in patent litigation.
This data suggests that external factors do not explain the drop in patent litigation cost; instead, IPRIntellectual Property Rights. Usually associated with formal legal rights such as patent, trademark, and copyright. Intellectual property is a broader term that encompasses knowledge, information, and data considered proprietary whether or not it is formally protected. and Alice bear much of that responsibility.