How does a representative grant permissions to a paralegal or other professional representative?

As a representative, you do this by signing in to MyEPO Portfolio > Applications and patents to view the portfolio and then selecting Manage permissions. This shows a list of people whose account credentials are registered as belonging to the same company as you. A dropdown menu allows you to grant permissions in connection with the entire portfolio to any other company member.

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At this point, permissions can only be granted in connection with a full portfolio, not individual applications, and only you, the representative, can grant permissions.