Are Patents worthwhile to go for?

Researching on Free Patents Online, you may find plenty of ideas rendered to patents to eventually render profit later. Examples given:

• The SAP KPRO (or Knowledge Provider) and another
• The SAP ABAP-OO Programming Framework within SAP Folder Management
• The METHOD AND SYSTEM FOR CASE MANAGEMENT

We do honor intellectual property, we do even further declaring us open source. Some patents are too immature to be filed. These patents are not fundamental,,,