Patent Portfolio Interconnection Maps

Patent Portfolio Interconnection Maps show the patent citation references among a group of patents - only among those patents.

A portfolio that is highly interconnected may indicate that the company holding these patents is building a strong portfolio, with one patent building off and supporting others. 

Following is the US portfolio of Transmeta Corporation a firm that developed, enforced and licensed intellectual property related to low-power semiconductor technologies.  In 2007 Intel paid Transmeta over $200m to settle a patent infringement suit.  Transmeta was sold in January, 2009 to Novafora.

Example Patent Portfolio Interconnection Map - Transmeta