TABLE 2.

Share of Drugs Approved by the US Food and Drug Administration Between 1988 and 2005 With Patent Applications in Developing Countries

	Overall		Filed Pre-1996		Filed 1996 or Later
	Mean (SE)	No.	Mean (SE)	No.	Mean (SE)	No.
All patents	0.43 (0.01)	1947	0.35 (0.01)	1414	0.64 (0.02)	533
Academic patents	0.19 (0.04)	96	0.14 (0.04)	80	0.43 (0.13)	16
Nonacademic patents	0.44 (0.01)	1851	0.40 (0.01)	1334	0.64 (0.02)	517
Nonacademic patents with academic patents on same drug	0.40 (0.05)	81	0.29 (0.06)	55	0.62 (0.09)	26
Nonacademic patents without academic patents on same drug	0.44 (0.01)	1770	0.36 (0.01)	1279	0.65 (0.02)	491

Note. Mean values are percentage of drugs filed in developing countries.