The Center for Technology Licensing (CTL) is Cornell University's technology transfer office. We manage technology for Cornell's Ithaca campus, Weill Cornell Medicine, Cornell Tech, and Cornell AgriTech in Geneva.


Lateral Error Correction for Time-Critical Cluster Multicast License

Ricochet is a low-latency reliable multicast protocol designed for time-critical clustered applications. The design uses IP multicast for data transmission and includes a novel repair mechanism in its implementation of lateral error correction. Unlike current multicast schemes, which scale poorly and can cause long latency, Ricochet was designed for scalability to provide a fast and reliable multicast scheme for layering under high-level abstractions such as publish-subscribe, group communication, and replicated service/object infrastructures.


Potential Applications

  • For layering under high-level abstractions
  • Clusters and datacenters



  • Highly scalable
  • Reliable
  • High speed


Ricochet is patent protected by Cornell University under US Patent 7,532,621 which is available for licensing.  Please follow the procedure below to secure a non-exclusive license to use US Patent 7,532,621:

  1. Download the Non-Exclusive License Agreement and read the terms.
  2. Enter your information in Appendix A.
  3. Sign as Licensee on each of the two separate copies.

Please send a check or money order for the license fee, payable to Cornell University, along with the two signed copies of the License Agreement, to:


Center for Technology Licensing at Cornell University
PO Box 6899
Ithaca, NY 14850-6899


Additional Information (publications, web sites, and patent links)


Supporting Documents


Innovators & Portfolio

  • Mahesh Balakrishnan
  • Kenneth Birman | Web Site


Licensing Contact


Ryan Luebke