The DOepatents database represents a growing collection of patents resulting from R&D supported by DOE and demonstrates the Department’s considerable contribution to scientific progress from the 1940s to the present. The collection is growing as historic and recently issued patents are identified and added. Currently, there are more than 24,000 searchable patent records in the collection. DOepatents was developed by OSTI. More information about technology transfer may be found at the DOE Technology Transfer website. Questions about technology transfer at the U.S. Department of Energy may be addressed to DOEtechtransfer@science.doe.gov.