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Series

Intellectual Property Law

Columbia Law School

Patents

2007

Articles 1 - 4 of 4

Full-Text Articles in Law

The Disputed Quality Of Software Patents, John R. Allison, Ronald J. Mann Jan 2007

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 examination of the 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 dataset from which we can learn more about the role of patents in the software industry. In general, we find that the patents computer technology firms obtain on software inventions have more prior art references, claims, and forward citations than the patents the same firms obtain ...


Software Patents, Incumbents, And Entry, John R. Allison, Abe Dunn, Ronald J. Mann Jan 2007

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 ...


The Disputed Quality Of Software Patents, John R. Allison, Ronald J. Mann Jan 2007

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 Jan 2007

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 ...