The design and development of gear pumps have been ongoing for more than four centuries. While such a prolonged period of innovation might suggest that these devices have been refined in every aspect, this article argues otherwise. It highlights emerging directions in the development of gear pumps, particularly focusing on methods aimed at reducing internal leakage, a critical issue affecting pump efficiency and performance. The paper originates from studies conducted at the Laboratory of Hydraulic Drives and Machine Vibroacoustics. These investigations address the challenges of internal leakage through advanced compensation methods, showcasing innovative design solutions that enhance the operational pressure range and volumetric efficiency of external gear pumps. The publication introduces designs developed as part of independent and doctoral research projects. These designs incorporate improved sealing mechanisms to optimize performance. Emphasis is placed on increasing volumetric efficiency under varying operational conditions and maximum output pressure. The article underscores the potential for further advancements in gear pump technology, emphasizing that even mature technologies can benefit from continuous improvement.