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What's Wrong With The Patent System? Fuzzy Boundaries And The Patent Tax, James Bessen, Michael J. Meurer
What's Wrong With The Patent System? Fuzzy Boundaries And The Patent Tax, James Bessen, Michael J. Meurer
Faculty Scholarship
The annual number of patent lawsuits filed in the U.S. has roughly tripled from 1970 to 2004. The number of suits was more or less steady in the 1970s, climbed slowly in the 1980s, and exploded in the 1990s. Why? The usual answers point to (1) the growth of the “new economy” and the concomitant explosion of patenting, (2) the failure of the Patent Office to reject patents on old or obvious inventions, or (3) the rise of the patent troll. There is an element of truth in all these answers, but even collectively they do a poor job explaining …
An Empirical Look At Software Patents, James Bessen, Robert M. Hunt
An Empirical Look At Software Patents, James Bessen, Robert M. Hunt
Faculty Scholarship
U.S. legal changes have made it easier to obtain patents on inventions that use software. Software patents have grown rapidly and now comprise 15 percent of all patents. They are acquired primarily by large manufacturing firms in industries known for strategic patenting; only 5 percent belong to software publishers. The very large increase in software patent propensity over time is not adequately explained by changes in R&D investments, employment of computer programmers, or productivity growth. The residual increase in patent propensity is consistent with a sizeable rise in the cost effectiveness of software patents during the 1990s. We find evidence …
The Disputed Quality Of Software Patents, John R. Allison, Ronald J. Mann
The Disputed Quality Of Software Patents, John R. Allison, Ronald J. Mann
Faculty Scholarship
We analyze the characteristics of the patents held by firms in the software industry. Unlike prior researchers, we rely on the examination of individual patents to determine which patents involve software inventions. This method of identifying the relevant patents is more laborious than the methods that previous scholars have used, but it produces a data set from which we can learn more about the role of patents in the software industry. In general, we find that patents the computer technology firms obtain on software inventions have more prior art references, claims, and forward citations than the patents that the same …
Software Patents, Incumbents, And Entry, John R. Allison, Abe Dunn, Ronald J. Mann
Software Patents, Incumbents, And Entry, John R. Allison, Abe Dunn, Ronald J. Mann
Faculty Scholarship
Software patents have been controversial since the days when "software" referred to the crude programs that came free with an IBM mainframe. Different perspectives have been presented in judicial, legislative, and administrative fora over the years, and the press has paid as much attention to this issue as it has to any other intellectual property topic during this time. Meanwhile, a software industry developed and has grown to a remarkable size, whether measured by revenues or profitability, number of firms or employees, or research expenditures. The scope of software innovation has become even broader, as an increasing number of devices …