Fenner Investments, Ltd., of Richardson Texas, alleges patent infringement of US Patent 7,145,906 entitled “Packet Switching Node” against multiple defendants, namely, 3Com Corp., Foundry Networks, Inc., Extreme Networks Inc., Netgear Inc., Zyxel Communications Inc., D-Link Systems Inc., and SMC Networks Inc. Peter R. Fenner, as sole inventor of the ‘906 patent, developed the technology for use in addressing and routing data communication traffic as a part of the SBIR program (Small Business Innovation Research) for particular use in US Navy communications in conjunction with the topic N89-037 entitled “Addressing Techniques for Naval Traffic in a Multi-Media Environment.”