The examples shown thereinafter are matched with 40 TRIZ inventive principles as far as possible.
Moreover, they are categorized according to the seven eco-efficiency elements . The seven elements are:
A. Reduce the material intensity of its goods and services. (Material Reduction)
B. Reduce the energy intensity of its goods and services. (Energy Reduction)
C. Reduce the dispersion of any toxic materials. (Toxicity Reduction)
D. Enhance the recyclability of its materials. (Material Retrieval)
E. Maximize the sustainable use of renewable resources. (Resource Sustainable)
F. Extend the durability of its products. (Product Durability)G. Increase the service intensity of its goods and services. (Product Service)
As each element improves or more elements improve simultaneously, it produces high eco-efficiency products or services.
http://www.triz-journal.com/archives/2003/08/a/01.pdf