Yasar Halefoglu has been granted 6 US patents while listed as an inventor at Sima Technologies. The first was granted in 2005 and the most recent in October 2006. Yasar Halefoglu ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Yasar Halefoglu in Aliso Viejo, CA, US.