API EnCompass Patent Database
Elsevier Engineering Information, Inc.
The EnCompass Patent File covers worldwide patents relating to the petroleum, petrochemical, natural gas, and energy industries, including those on alternate energy sources and environmental effects of energy. EnCompPat is available only to EnCom-pass supporters. Access to EnComp-Pat2 by non-subscribers is restricted to two hours per year per organization of combined usage with EnCompLit2 on all vendors.