Interval Research Corporation

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Interval Research Corporation
Research think tank
IndustryResearch and Development
FounderPaul Allen Edit this on Wikidata
HeadquartersPalo Alto, U.S.
Key people
Paul Allen (Chairman)
David Liddle (CEO, President)
Number of employees
More than 110[1]

Interval Research Corporation was founded in 1992 by Paul Allen and David Liddle. It was a Palo Alto laboratory and technology incubator focusing on consumer product applications and services with a focus on the Internet.[2]

A 1997 version of the company's web page described itself as "a research setting seeking to define the issues, map out the concepts and create the technology that will be important in the future.... [pursuing] basic innovations in a number of early-stage technologies and [seeking] to foster industries around them – sparking opportunity for entrepreneurs and highlighting a new approach to research.".[3]

A 1999 Wired magazine article based on a memo from Paul Allen described the company as under fire from Allen to produce "less R and more D."[4] Interval Research Corporation officially closed its doors in April 2000, while a small group of former employees were kept on to form Interval Media to continue a few specific projects. Interval Media was closed in June, 2006.

Former employees[edit]

During its brief existence, Interval employed many well-known computer technology pioneers and experts, including:


Interval Research was issued approximately 130 US patents.[10] Four of its patents, now owned by Allen's Interval Licensing LLC, are the subject of a patent infringement lawsuit Interval Licensing filed in August 2010 against AOL, Apple, eBay, Facebook, Google, Netflix, Office Depot, OfficeMax, Staples, Yahoo!, and YouTube (but not Microsoft or Amazon):[1][11]

The Complaint also alleged that Interval Research was credited by Google in 1998 as an "outside collaborator" and one of the companies that funded research by Sergey Brin and Lawrence Page that resulted in Google.[1] On Mar. 3, 2011, Article One Partners announced that one of the patents held by Interval Licensing would be posted to their online community to utilize Public participation in patent examination. The patent in question was U.S. Patent No. 6,263,507, defined as "Browser for Use in Navigating a Body of Information, With Particular Application to Browsing Information Represented By Audiovisual Data."[12]

The lawsuit ultimately failed and was dismissed by the district court November 2018,[13] after reexaminations by the U.S. Patent and Trademark Office and rulings by the district court found all asserted claims of all four patents to be invalid.[14][15]


  1. ^ a b c Searcey, Dionne (August 28, 2010). "Microsoft Co-Founder Launches Patent War". The Wall Street Journal. Retrieved 2010-08-28.
  2. ^ "WTO Board Bio: David Liddle". Archived from the original on 2007-03-11.
  3. ^ Interval Research Corporation – About – Page (From:13-November-1996)
  4. ^ Bass, Thomas A. (Dec 1999). "Think Tanked". Wired Magazine. Retrieved 20 April 2010.
  5. ^ a b System for Image Manipulation and Animation Using Embedded Constraint Graphics. J. T. Ngo and B. R. Donald. U.S. Patent #5,933,150, issued August 3, 1999.
  6. ^ a b Accessible Animation and Customizable Graphics via Simplicial Configuration Modeling. T. Ngo, D. Cutrell, J. Dana, B. R. Donald, L. Loeb, and S. Zhu. Proc. ACM SIGGRAPH (New Orleans) July, 2000, pp. 403–410.
  7. ^
  8. ^
  9. ^
  10. ^ Interval Research's List of US Patents
  11. ^ "Interval Licensing LLC v. AOL Inc. et al" (PDF). Complaint for Patent Infringement. The Wall Street Journal. August 27, 2010. Retrieved 2010-08-28.
  12. ^ "Article One Partners Launches Public Review of Interval Licensing LLC Patent Asserted Against Technology Industry Leaders"
  13. ^ Order Pursuant to Stipulation (ECF No. 400), Dismissing Action with Prejudice, Interval Licensing LLC v. AOL Inc et al., Case No. 2:10-cv-01385 BJR (W.D. Wash.) (November 13, 2018)
  14. ^ Joint Status Report (ECF No. 393), Interval Licensing LLC v. AOL Inc et al., Case No. 2:10-cv-01385 BJR (W.D. Wash.) (February 2, 2018)
  15. ^ "U.S. Supreme Court rejects Paul Allen’s Interval Licensing Patent Appeal"

External links[edit]