One of our patents is getting referenced by others

We just realized that one of our patents, US Patent No. 7,958,080, is getting referenced by other inventors:

Patent Applicant Title
US8214313 Ford Motor Company Turn rate calculation
US8489647 IBM Use-case based configuration of an object-relational mapping framework
US8543785 Microsoft Protocol for managed copy of media content
US20080028170 Microsoft Protocol for Managed Copy of Media Content
US20110137763 Dirk Aguilar System that Captures and Tracks Energy Data for Estimating Energy Consumption, Facilitating its Reduction and Offsetting its Associated Emissions in an Automated and Recurring Fashion
US20120054227 IBM Use-case based configuration of an object-relational mapping framework

Well, this is interesting…