By Uncategorized
Google LLC v. Valtrus Innovations Ltd
[
United States Court of Appeals
for the Federal Circuit]
Dispute in Brief
  • Patent

Valtrus Innovations Ltd. owns U.S. Patent No. 6,728,704 (the ’704 patent), which protects a method for merging search-result lists from multiple different search engines.

  • Google’s Challenge:

Google filed an inter partes review (IPR) trying to cancel claims 1–23 of the patent, arguing they were obvious based on an older patent application filed by an inventor named Bushee on July 24, 2001.

  • The Dispute (“Antedating”):
  • Valtrus’s actual patent application wasn’t filed until August 27, 2001—about five weeks after To win, Valtrus had to legally “date back” (antedate) its invention by proving two things under older patent law rules:
    1. The inventors conceived the idea before Bushee was filed.
    2. The inventors exercised reasonably continuous diligence in preparing the patent application between the time Bushee was filed and their own application date.
  • The Court’s Rulings on Google’s Appeals

Google challenged two main factual determinations made by the PTAB, but the Appeals Court rejected both arguments:

  1. Conception and Corroboration (The Metadata Rule)
  • Google’s Argument: Google argued that a declaration by co-inventor Dr. Tsaparas wasn’t properly backed up because the supporting project files and metadata were entirely under his control.
  • The Court’s Ruling: The court ruled against Google, noting that Microsoft Word metadata is automatically generated and counts as independent evidence. Because the timestamps and authorship details in the files matched the early timeline, the inventor’s story was legally corroborated.
  1. Attorney/Inventor Diligence (The 11-Day Gap)
  • Google’s Argument: Google argued that Valtrus failed to show they were actively working on the patent during an 11-business-day gap in August 2001.
  • Findings of Court
  • The Court’s Ruling: The court held that patent diligence does not require proof of work on every single day. The court pointed out that Dr. Tsaparas was physically located in Canada at the time, meaning it took time to mail his physical signature back to California. Combined with expert testimony that drafting patent applications naturally takes several weeks, the court ruled the 11-day gap was completely reasonable and did not constitute an abandonment. 
 Outcome

The court rejected Google’s arguments and affirmed the Board’s decision, meaning Valtrus successfully protected its patent claims against Google’s invalidity challenge.

Source: Delhi High Court, Bombay High Court, Calcutta High Court, USPTO, IPINDIA, Swarupa Ghosh Law Chamber

Patent Attorney in India