On June 7, 2013, Randus Flooring, Inc., filed IPR2013-00333 on U.S. Patent No. 8381473 on System and Method for Floor Covering Installation. Mobotix Corp filed IPR2013-00334 6/7/2013 on U.S. Patent No. 7733371 on Digital Security Multimedia Sensor; IPR2013-00335 on U.S. Patent No. 7228429 on Multimedia Network Appliances for Security and Surveillance Applications; and IPR2013-00337 on U.S. Patent No. 7023913 on Digital Security Multimedia Sensor. JDS Uniphase Corporation filed IPR2013-00336 on U.S. Patent No. 6430332 on Optical Switching Apparatus. Gatekeeper Systems, Inc., filed IPR2013-00338 on U.S. Patent No. 7493979 on Power-Assisted Cart Retriever with Attenuated Power Output.