upgrader - Business Directory https://biz.prlog.org/tag/upgrader/ upgrader - Free business directory on PRLog.Org, latest companies listed first. 60 Energy Quest, Inc. https://biz.prlog.org/energyquest/ Energy Quest, Inc. and its wholly owned subsidiaries Wavechem Inc. and Syngas Energy Corp. (SEC) are active in the research, development and commercialization of "alternative petroleum refining and renewable energy” technologies. Fri, 29 Jan 2010 18:35:48 GMT