What determines the duration of patent examination in China? An outcome-specific duration analysis of invention patent applications at SIPO

Tony W. Tong, Kun Zhang, Z. L. He, Yuchen Zhang

Research output: Contribution to journalArticleScientificpeer-review

Abstract

Although China is now the largest patent filing country in the world, research on the duration and outcomes of patent examination remains scarce. In this study, we conduct a replication and extension of Harhoff and Wagner’s (2009) work on the determinants of patent examination duration at the European Patent Office (EPO), using a rich dataset covering the population of about 1.1 million invention patent applications to China’s State Intellectual Property Office (SIPO) from 1993 to 2006. By considering all three competing examination outcomes (grant, withdrawal, and refusal) simultaneously, our competing risks analysis replicates many of the results in prior research and confirms that a number of the determinants have differential effects on pendencies for different outcomes. Our analysis also reveals several applicant and application characteristics whose effects on pendencies for specific outcomes differ from prior research. Finally, by incorporating a number of new determinants, we report a set of new findings about their effects on the examination duration for the three outcomes at SIPO.
Original languageEnglish
Pages (from-to)583-591
JournalResearch Policy: A Journal devoted to Research Policy, Research Management and Planning
Volume47
Issue number3
DOIs
Publication statusPublished - 1 Apr 2018

Fingerprint

Intellectual property
Patents and inventions
Risk analysis
Invention
China
Duration analysis
Patents

Keywords

  • patent
  • examination duration
  • grant
  • withdrawal
  • refusal
  • intellectual property right (IPR)
  • survival analysis
  • competing risks
  • state intellectual property office (SIPO)
  • China

Cite this

@article{a20fbea6092f4a1998f55bf55a54cc5a,
title = "What determines the duration of patent examination in China?: An outcome-specific duration analysis of invention patent applications at SIPO",
abstract = "Although China is now the largest patent filing country in the world, research on the duration and outcomes of patent examination remains scarce. In this study, we conduct a replication and extension of Harhoff and Wagner’s (2009) work on the determinants of patent examination duration at the European Patent Office (EPO), using a rich dataset covering the population of about 1.1 million invention patent applications to China’s State Intellectual Property Office (SIPO) from 1993 to 2006. By considering all three competing examination outcomes (grant, withdrawal, and refusal) simultaneously, our competing risks analysis replicates many of the results in prior research and confirms that a number of the determinants have differential effects on pendencies for different outcomes. Our analysis also reveals several applicant and application characteristics whose effects on pendencies for specific outcomes differ from prior research. Finally, by incorporating a number of new determinants, we report a set of new findings about their effects on the examination duration for the three outcomes at SIPO.",
keywords = "patent, examination duration, grant, withdrawal, refusal, intellectual property right (IPR), survival analysis, competing risks, state intellectual property office (SIPO), China",
author = "Tong, {Tony W.} and Kun Zhang and He, {Z. L.} and Yuchen Zhang",
year = "2018",
month = "4",
day = "1",
doi = "10.1016/j.respol.2018.01.002",
language = "English",
volume = "47",
pages = "583--591",
journal = "Research Policy: A Journal devoted to Research Policy, Research Management and Planning",
issn = "0048-7333",
publisher = "Elsevier Science BV",
number = "3",

}

What determines the duration of patent examination in China? An outcome-specific duration analysis of invention patent applications at SIPO. / Tong, Tony W.; Zhang, Kun; He, Z. L.; Zhang, Yuchen.

In: Research Policy: A Journal devoted to Research Policy, Research Management and Planning, Vol. 47, No. 3, 01.04.2018, p. 583-591.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - What determines the duration of patent examination in China?

T2 - An outcome-specific duration analysis of invention patent applications at SIPO

AU - Tong, Tony W.

AU - Zhang, Kun

AU - He, Z. L.

AU - Zhang, Yuchen

PY - 2018/4/1

Y1 - 2018/4/1

N2 - Although China is now the largest patent filing country in the world, research on the duration and outcomes of patent examination remains scarce. In this study, we conduct a replication and extension of Harhoff and Wagner’s (2009) work on the determinants of patent examination duration at the European Patent Office (EPO), using a rich dataset covering the population of about 1.1 million invention patent applications to China’s State Intellectual Property Office (SIPO) from 1993 to 2006. By considering all three competing examination outcomes (grant, withdrawal, and refusal) simultaneously, our competing risks analysis replicates many of the results in prior research and confirms that a number of the determinants have differential effects on pendencies for different outcomes. Our analysis also reveals several applicant and application characteristics whose effects on pendencies for specific outcomes differ from prior research. Finally, by incorporating a number of new determinants, we report a set of new findings about their effects on the examination duration for the three outcomes at SIPO.

AB - Although China is now the largest patent filing country in the world, research on the duration and outcomes of patent examination remains scarce. In this study, we conduct a replication and extension of Harhoff and Wagner’s (2009) work on the determinants of patent examination duration at the European Patent Office (EPO), using a rich dataset covering the population of about 1.1 million invention patent applications to China’s State Intellectual Property Office (SIPO) from 1993 to 2006. By considering all three competing examination outcomes (grant, withdrawal, and refusal) simultaneously, our competing risks analysis replicates many of the results in prior research and confirms that a number of the determinants have differential effects on pendencies for different outcomes. Our analysis also reveals several applicant and application characteristics whose effects on pendencies for specific outcomes differ from prior research. Finally, by incorporating a number of new determinants, we report a set of new findings about their effects on the examination duration for the three outcomes at SIPO.

KW - patent

KW - examination duration

KW - grant

KW - withdrawal

KW - refusal

KW - intellectual property right (IPR)

KW - survival analysis

KW - competing risks

KW - state intellectual property office (SIPO)

KW - China

U2 - 10.1016/j.respol.2018.01.002

DO - 10.1016/j.respol.2018.01.002

M3 - Article

VL - 47

SP - 583

EP - 591

JO - Research Policy: A Journal devoted to Research Policy, Research Management and Planning

JF - Research Policy: A Journal devoted to Research Policy, Research Management and Planning

SN - 0048-7333

IS - 3

ER -