Recent Patents on Chemical Engineering

Yousheng Tao  
State Key Laboratory of Structural Chemistry
Fujian Institute of Research on the Structure of Matter
Chinese Academy of Sciences


A Review of Patents on Engine Exhaust Particulate Matter Samplers

Author(s): Kaushik K. Shandilya and Ashok Kumar

Affiliation: Department of Civil Engineering, The University of Toledo, Toledo OH 43606, USA


The purpose of this paper is to review particulate measurement systems based on the technologies available from the online database maintained by the United States Patents and Trademark Office. The most significant patents are evaluated based on key features and principles such as gravimetric, optical, and electrostatics. It was found that scientists are constantly improving the instruments using different physical characteristics related to the exhaust. The paper identifies knowledge gaps that could be used to develop new inventions.

Keywords: Automobile, exhaust emission, particulate sampler, patent, principle of particulate sampling, dilution tunnel.

Order Reprints Order Eprints Rights & PermissionsPrintExport

Article Details

Page: [11 - 19]
Pages: 9
DOI: 10.2174/2211334711205010011