Patent management

September 29, 2007

Patent, Opposition proceeding

Filed under: Uncategorized — Tags: , , — admin @ 2:00 pm

An opposition proceeding is an administrative process available under the patent and trademark law of most jurisdictions which allows third parties to dispute the validity of a granted patent or trademark.


Patents

In Europe, third parties may dispute the validity of a granted European patent by filing a post-grant opposition under the European Patent Convention.

In Germany, third parties may dispute the validity of a pending German patent application under German patent law.

Under United States patent law, an opposition proceeding is called a reexamination.

In Japanese patent law, opposition procedure after an examiner’s decision to grant a patent was abandoned in 2003; trial for invalidation serves as the alternative.


Trademarks

In the case of trademarks, third parties may use opposition proceedings to “oppose” the acceptance of a trademark application after it has been accepted and published for opposition purposes. If an opposition is defeated the trademark will proceed to registration. Some jurisdictions operate a “post-grant” opposition system, whereby opposition is not possible until after registration (eg. Japan).


See also

  • Opposition procedure before the European Patent Office
  • Patent infringement
  • Patent watch
  • Patentability
  • Prior art
  • Reexamination

References

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