Systems and methods for rule-based bilateral negotiation of quotes in response to request for quotes (RFQ) and inside market inquiries is provided. A trader is provided with a user-interactive trading interface for submitting and receiving an RFQ. The user-interactive trading interface may provide a...http://www.google.de/patents/US20030033239?utm_source=gb-gplus-sharePatent US20030033239 - Request for quote (RFQ) and inside markets