After claiming, or late claiming, is the practice of filing a US patent application after the publication by a third party of a description of the same invention.[1] This is possible in US patent law with regard to applications not subject to the Leahy–Smith America Invents Act, since an inventor has one year after the publication of the description of an invention to get a patent application on file.

In order to get the patent, however, the inventor must submit a declaration supported by evidence that he or she conceived of the invention before the third-party publication. The inventor must also provide evidence that he or she was diligent in either reducing the invention to practice or in filing the patent application.

After claiming is not available in applications examined under the Leahy–Smith America Invents Act, with narrow exceptions relating to disclosure by the inventor or a joint inventor or by someone who had obtained the subject matter from the inventor or a joint inventor.[2]

Example

On December 28, 1995, a patent application by Synteni (now Incyte Genomics) WO/95/35505 was published describing a microarray invention. A competitor, Affymetrix, filed a patent application describing almost exactly the same invention within six months. This patent application was granted as U.S. Patent 5,800,992. Affymetrix then sued Synteni for patent infringement. The case was eventually settled with the parties cross-licensing their patents.[3]

See also

References

  1. ↑ ""What is after claiming?" Patent Lens blog". Archived from the original on 2009-02-26. Retrieved 2008-12-03.
  2. ↑ 35 U.S.C. § 102 as amended by the Leahy–Smith America Invents Act
  3. ↑ Bergman et al., "Evaluating the risk of patent infringement by means of semantic patent analysis: the case of DNA chips", R&D Management 38, 5, 2008. p 552
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