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Climate notes: Patents and climate protection

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  • Tilmann Rave
  • Maximilian Sindram

Abstract

With the help of patent data. underlying knowledge flows can be represented. With a patent citation analysis, initial conclusions can be drawn on the diffusion of technologies. In this article the knowledge flows of technologies for automobile air-conditioning are depicted. This information is of interest for environmental policy both with regard to the reduction of direct greenhouse gas emissions from the leakage of problematic refrigerants as well as with regard to the reduction of indirect emissions due to higher fuel consumption. Of a total of 10,000 patents, about one sixth are environmental patents. They are mainly from Germany (28%), Japan (25%) and the US (17%). A further breakdown of environmental patents shows that about two thirds are aimed at reducing indirect greenhouse gas emissions and about 30 percent at reducing direct greenhouse gas emissions. Germany is in a leading position regarding patents for vehicle air-conditioning and is well positioned in the sub-group on environmental patents.

Suggested Citation

  • Tilmann Rave & Maximilian Sindram, 2011. "Climate notes: Patents and climate protection," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 64(04), pages 30-33, February.
    • Handle: RePEc:ces:ifosdt:v:64:y:2011:i:04:p:30-33
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    1. Tilmann Rave & Maximilian Sindram, 2010. "Climate protection by reduced emissions of fluorised greenhouse gasses - the example of innovative coldness and climate technology," ifo Schnelldienst, ifo Institute - Leibniz Institute for Economic Research at the University of Munich, vol. 63(18), pages 18-27, September.
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      JEL classification:

      • Q20 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Renewable Resources and Conservation - - - General
      • Q53 - Agricultural and Natural Resource Economics; Environmental and Ecological Economics - - Environmental Economics - - - Air Pollution; Water Pollution; Noise; Hazardous Waste; Solid Waste; Recycling
      • O34 - Economic Development, Innovation, Technological Change, and Growth - - Innovation; Research and Development; Technological Change; Intellectual Property Rights - - - Intellectual Property and Intellectual Capital

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