EAPO - see Eurasian Patent Organization.

EFS - see Electronic Filing System.

EPO - see European Patent Office.

Equivalent - see Claim Element Equivalent.

ERDRP - see Eligibility Requirements Dispute Resolution Policy.

ESI - see Electronically Stored Information.

esp@cenet - refers to a trademark of the European Patent Office for an online service for searching patents and patent applications.

Establishment - refers to a store, shop, or any similar place of business open to the general public for the primary purpose of selling goods or services in which the majority of the gross square feet of space that is nonresidential is used for that purpose, and in which nondramatic musical works are performed publicly.

EU - see European Union.

Ex Aequo Et Bono - refers to the Latin phrase meaning "according to the right and good." It is often used to describe the ability of arbitrators to dispense with the law and use their conscience to determine what is fair and equitable for the matter in front of them.

Exemplary Damages - see Punitive Damages.

Extraordinary Circumstances - refers to the standard to recover attorneys' fees in a trademark infringement action under the Lanham Act.