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Forced Out of the Closet: The Impact of the American Inventors Protection Act on the Timing of Patent Disclosure

  • Johnson, Daniel K N
  • Popp, David

Beginning in November 2000, patent applications filed in the United States are disclosed after 18 months, rather than when the patent is granted. Using U.S. patent data from 1976 to 1996, we find that major inventions are most likely to be affected, as they take longer to go through the application process. We conclude with evidence that this change will result in faster knowledge diffusion. Copyright 2003 by the RAND Corporation.

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Article provided by The RAND Corporation in its journal RAND Journal of Economics.

Volume (Year): 34 (2003)
Issue (Month): 1 (Spring)
Pages: 96-112

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Handle: RePEc:rje:randje:v:34:y:2003:i:1:p:96-112
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  1. Jaffe, A.B. & Trajtenberg, M., 1992. "Geographic Localization of Knowledge Spillovers as Evidenced by Patent Citations," Papers 14-92, Tel Aviv.
  2. Adam B. Jaffe & Michael S. Fogarty & Bruce A. Banks, 1997. "Evidence from Patents and Patent Citations on the Impact of NASA and Other Federal Labs on Commercial Innovation," NBER Working Papers 6044, National Bureau of Economic Research, Inc.
  3. Jean O. Lanjouw & Mark Schankerman, 1999. "The Quality of Ideas: Measuring Innovation with Multiple Indicators," NBER Working Papers 7345, National Bureau of Economic Research, Inc.
  4. Zvi Griliches, 1990. "Patent Statistics as Economic Indicators: A Survey," NBER Working Papers 3301, National Bureau of Economic Research, Inc.
  5. Eaton, Jonathan & Kortum, Samuel, 1999. "International Technology Diffusion: Theory and Measurement," International Economic Review, Department of Economics, University of Pennsylvania and Osaka University Institute of Social and Economic Research Association, vol. 40(3), pages 537-70, August.
  6. Adam B. Jaffe & Manuel Trajtenberg, 1996. "Flows of Knowledge from Universities and Federal Labs: Modeling the Flowof Patent Citations Over Time and Across Institutional and Geographic Boundari," NBER Working Papers 5712, National Bureau of Economic Research, Inc.
  7. Janusz A. Ordover, 1991. "A Patent System for Both Diffusion and Exclusion," Journal of Economic Perspectives, American Economic Association, vol. 5(1), pages 43-60, Winter.
  8. repec:fth:harver:1473 is not listed on IDEAS
  9. Bloch, Francis & Markowitz, Paul, 1996. "Optimal disclosure delay in multistage R&D competition," International Journal of Industrial Organization, Elsevier, vol. 14(2), pages 159-179.
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