I did a quick patent search on Delphion for Holocom Networks patents.  I only had three hits (US Granted), and Holocom was not the inventor/assignee on any of them (strange -- they may have purchased the rights to them).  Two of the three appeared to be related to Holocom's cable storage management systems -- the other has something to do with some coating application for fiber optic cables. 

US5831211 Variable-type cable management and distribution system

US6838616 Secure enclosure for access to cabled systems

US6794066 Optical element with mirror coating and method for forming said coating

There may be some patent applications out that have not yet been granted -- freebie subscriptions are not permitted to search beyond US Granted.